MedTerm Speak

Master the language of medicine

Cachexia

kah-KEK-see-ah

/kəˈkɛksiə/

Weakness and wasting of the body due to severe chronic illness, often seen in advanced cancer or AIDS.

Calcification

kal-sih-fih-KAY-shun

/ˌkælsɪfɪˈkeɪʃən/

The accumulation of calcium salts in a body tissue, normally occurring in bone but potentially pathological in soft tissues.

Calculus

KAL-kyoo-lus

/ˈkælkjʊləs/

A stone or concentration of mineral salts, typically formed within an organ like the kidney or gallbladder.

Callus

KAL-us

/ˈkæləs/

A thickened and hardened part of the skin or soft tissue, especially in an area that has been subjected to friction.

Capacitation

kah-pas-ih-TAY-shun

/kəˌpæsɪˈteɪʃən/

The penultimate step in the maturation of mammalian sperm, required to render them competent to fertilize an oocyte.

Capillary

KAP-ih-lair-ee

/ˈkæpɪˌlɛri/

Any of the fine branching blood vessels that form a network between the arterioles and venules.

Capitulum

kah-PIT-yoo-lum

/kəˈpɪtʃʊləm/

A small head or rounded articular extremity of a bone, such as that of the humerus.

Capsule

KAP-sool

/ˈkæpsuːl/

A tough sheath or membrane that encloses an organ or other structure in the body.

Carboxyhemoglobin

kar-bok-see-HEE-moh-gloh-bin

/kɑːrˌbɒksiˌhiːməˈɡloʊbɪn/

A stable complex of carbon monoxide and hemoglobin that forms in red blood cells when carbon monoxide is inhaled.

Carbuncle

KAR-bung-kul

/ˈkɑːrbʌŋkəl/

A severe abscess or multiple cluster of boils in the skin, typically infected with staphylococcus bacteria.

Carcinogen

kar-SIN-oh-jen

/kɑːrˈsɪnədʒən/

Any substance, radionuclide, or radiation that promotes carcinogenesis, the formation of cancer.

Carcinoma

kar-sih-NOH-mah

/ˌkɑːrsɪˈnoʊmə/

A type of cancer that starts in cells that make up the skin or the tissue lining organs.

Cardiac

KAR-dee-ak

/ˈkɑːrdiæk/

Relating to the heart.

Cardiac Tamponade

KAR-dee-ak tam-pon-AYD

/ˈkɑːrdiæk ˌtæmpəˈneɪd/

Compression of the heart by an accumulation of fluid in the pericardial sac.

Cardiomegaly

kar-dee-oh-MEG-ah-lee

/ˌkɑːrdioʊˈmɛɡəli/

Abnormal enlargement of the heart.

Cardiomyopathy

kar-dee-oh-my-OP-ah-thee

/ˌkɑːrdioʊmaɪˈɒpəθi/

A chronic disease of the heart muscle (myocardium), in which the muscle is abnormally enlarged, thickened, or stiffened.

Cardiopulmonary

kar-dee-oh-PUL-mon-air-ee

/ˌkɑːrdioʊˈpʌlməˌnɛri/

Relating to the heart and the lungs.

Cardiovascular

kar-dee-oh-VAS-kyoo-lar

/ˌkɑːrdioʊˈvæskjʊlər/

Relating to the heart and blood vessels.

Caries

KAIR-eez

/ˈkɛəriːz/

Decay and crumbling of a bone or tooth, most commonly used in reference to dental cavities.

Carotene

KAIR-oh-teen

/ˈkærəˌtiːn/

An orange or red plant pigment found in carrots and many other plant structures; a precursor of vitamin A.

Carotid

kah-ROT-id

/kəˈrɒtɪd/

Relating to the two main arteries that carry blood to the head and neck.

Carpal

KAR-pal

/ˈkɑːrpəl/

Relating to the bones forming the human wrist.

Carpopedal

kar-poh-PEE-dal

/ˌkɑːrpəˈpiːdəl/

Relating to the hands and feet; specifically used to describe spasms seen in tetany.

Carrier

KAIR-ee-er

/ˈkæriər/

A person or animal that transmits a disease-causing organism to others without suffering from it themselves.

Cartilage

KAR-tih-lij

/ˈkɑːrtɪlɪdʒ/

Firm, whitish, flexible connective tissue found in various forms in the larynx, respiratory tract, and joints.

Caseation

kay-see-AY-shun

/ˌkeɪsiˈeɪʃən/

A form of necrosis in which the tissue is soft, dry, and resembles cheese; typical of tuberculosis.

Cast

KAST

/kæst/

A rigid casing made of fiberglass or plaster that is used to immobilize a broken bone; also, cylindrical structures found in urine.

Castration

kas-TRAY-shun

/kæˈstreɪʃən/

The removal of the testes in a male or the ovaries in a female.

Catabolism

kah-TAB-oh-lizm

/kəˈtæbəˌlɪzəm/

The breakdown of complex molecules in living organisms to form simpler ones, together with the release of energy.

Catalyst

KAT-ah-list

/ˈkætəlɪst/

A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.

Cataract

KAT-ah-rakt

/ˈkætəˌrækt/

A medical condition in which the lens of the eye becomes progressively opaque, resulting in blurred vision.

Catatonia

kat-ah-TOH-nee-ah

/ˌkætəˈtoʊniə/

A state of neurogenic motor immobility and behavioral abnormality manifested by stupor.

Catecholamines

kat-eh-KOL-ah-meenz

/ˌkætɪˈkoʊləmiːnz/

Naturally occurring amines, such as epinephrine and dopamine, that function as neurotransmitters and hormones.

Catheter

KATH-eh-ter

/ˈkæθɪtər/

A flexible tube inserted through a narrow opening into a body cavity, particularly the bladder, for removing or injecting fluid.

Cauda Equina

KAW-dah eh-KWY-nah

/ˈkɔːdə ɪˈkwaɪnə/

A bundle of spinal nerves and spinal nerve rootlets consisting of the second through fifth lumbar nerve pairs.

Caudal

KAW-dal

/ˈkɔːdəl/

Relating to the tail or the posterior part of the body.

Caul

KAWL

/kɔːl/

The amniotic membrane enclosing a fetus which sometimes envelopes the head of the child at birth.

Causalgia

kaw-ZAL-jah

/kɔːˈzældʒə/

Severe burning pain in a limb caused by injury to a peripheral nerve.

Cauterization

kaw-ter-ih-ZAY-shun

/ˌkɔːtəraɪˈzeɪʃən/

The burning of a part of the body to remove or close off a part of it, often to stop bleeding.

Cavernous

KAV-er-nus

/ˈkævərnəs/

Containing caverns or hollow spaces; used to describe structures like the cavernous sinus in the brain.

Cavitation

kav-ih-TAY-shun

/ˌkævɪˈteɪʃən/

The formation of empty spaces or cavities in a solid object or tissue, often seen in lung tuberculosis.

Cecostomy

see-KOS-toh-mee

/siːˈkɒstəmi/

A surgical procedure to create an opening into the cecum, usually to allow for irrigation or decompression.

Cecum

SEE-kum

/ˈsiːkəm/

A pouch connected to the junction of the small and large intestines.

Celiac

SEE-lee-ak

/ˈsiːliæk/

Relating to the abdomen; specifically a disease caused by an immune reaction to eating gluten.

Celiotomy

see-lee-OT-oh-mee

/ˌsiːliˈɒtəmi/

A surgical incision into the abdominal cavity; also known as a laparotomy.

Cellulitis

sel-yoo-LY-tis

/ˌsɛljʊˈlaɪtɪs/

A common and potentially serious bacterial skin infection.

Cellulose

SEL-yoo-lohs

/ˈsɛljʊloʊs/

An insoluble substance which is the main constituent of plant cell walls; acts as dietary fiber in humans.

Cementum

seh-MEN-tum

/sɪˈmɛntəm/

A specialized bony substance covering the root of a tooth.

Centrifuge

SEN-trih-fyooj

/ˈsɛntrɪˌfjuːdʒ/

A machine with a rapidly rotating container that applies centrifugal force to its contents, typically to separate fluids.

Centromere

SEN-troh-meer

/ˈsɛntrəˌmɪər/

The region of a chromosome to which the microtubules of the spindle attach during cell division.

Cephalalgia

sef-al-AL-jah

/ˌsɛfəˈlældʒə/

The medical term for a headache.

Cephalhematoma

sef-al-hee-mah-TOH-mah

/ˌsɛfəlhiːməˈtoʊmə/

A collection of blood between a newborn's scalp and the skull.

Cephalic

seh-FAL-ik

/səˈfælɪk/

Relating to the head or the head end of the body.

Cerclage

ser-KLAZH

/sɛrˈklɑːʒ/

A procedure in which a stitch is used to close the cervix during pregnancy to prevent premature birth.

Cerebellar

ser-eh-BEL-ar

/ˌsɛrɪˈbɛlər/

Relating to the cerebellum.

Cerebellum

sair-eh-BEL-um

/ˌsɛrɪˈbɛləm/

The part of the brain at the back of the skull that coordinates and regulates muscular activity.

Cerebration

ser-eh-BRAY-shun

/ˌsɛrɪˈbreɪʃən/

The working of the brain; thinking.

Cerebrospinal

seh-ree-broh-SPY-nal

/səˌriːbroʊˈspaɪnəl/

Relating to the brain and the spine.

Cerebrospinal Fluid

seh-ree-broh-SPY-nal FLOO-id

/səˌriːbroʊˈspaɪnəl ˈfluːɪd/

Clear watery fluid that fills the space between the arachnoid membrane and the pia mater.

Cerebrovascular

seh-ree-broh-VAS-kyoo-lar

/səˌriːbroʊˈvæskjʊlər/

Relating to the blood vessels of the brain.

Cerebrum

seh-REE-brum

/səˈriːbrəm/

The principal and most anterior part of the brain in vertebrates, located in the front area of the skull.

Cerumen

seh-ROO-men

/səˈruːmən/

Technical term for earwax.

Ceruminous

seh-ROO-mih-nus

/səˈruːmɪnəs/

Relating to cerumen (earwax) or the glands that secrete it.

Cervical

SER-vih-kul

/ˈsɜːrvɪkəl/

Relating to the neck, or to the cervix of the uterus.

Cervix

SER-viks

/ˈsɜːrvɪks/

The narrow necklike passage forming the lower end of the uterus.

Chalazion

kah-LAY-zee-on

/kəˈleɪziɒn/

A slow-growing, inflammatory lump in the oil gland of the eyelid.

Chancre

SHANG-ker

/ˈʃæŋkər/

A painless ulcer, particularly one developing on the genitals as a result of primary syphilis.

Cheilitis

ky-LY-tis

/kaɪˈlaɪtɪs/

Inflammation of the lips.

Chelicera

keh-LIS-er-ah

/kəˈlɪsərə/

In medical entomology, one of a pair of appendages used for piercing skin by certain arachnids.

Chemonucleolysis

kee-moh-noo-klee-OL-ih-sis

/ˌkiːmoʊˌnuːklioʊˈlɪsɪs/

The dissolution of a herniated nucleus pulposus by the injection of an enzyme (like chymopapain).

Chemoreceptor

kee-moh-ree-SEP-tor

/ˌkiːmoʊrɪˈsɛptər/

A sensory organ or cell responsive to chemical stimuli, such as those in the carotid body.

Chemotaxis

kee-moh-TAK-sis

/ˌkiːmoʊˈtæksɪs/

Movement of a motile cell or organism, or part of one, in a direction corresponding to a gradient of increasing or decreasing concentration of a particular substance.

Chemotherapy

kee-moh-THER-ah-pee

/ˌkiːmoʊˈθɛrəpi/

The treatment of disease by the use of chemical substances, especially the treatment of cancer by cytotoxic drugs.

Cheyne-Stokes

CHAYN STOHKS

/ˌtʃeɪn ˈstoʊks/

An abnormal pattern of breathing characterized by progressively deeper, and sometimes faster, breathing followed by a gradual decrease that results in temporary apnea.

Cheyne-Stokes Respiration

CHAYN-STOHKS res-pih-RAY-shun

/ˌtʃeɪn ˈstoʊks ˌrɛspəˈreɪʃən/

A periodic pattern of breathing involving cycles of apnea and hyperventilation, often associated with heart failure or brain injury.

Chiasm

KY-azm

/ˈkaɪæzəm/

A crossing of two tracts or structures, such as the optic nerves.

Chiasma

ky-AZ-mah

/kaɪˈæzmə/

A point at which paired chromosomes remain in contact during the first metaphase of meiosis, and at which crossing over and exchange of genetic material occur.

Chiropractic

ky-roh-PRAK-tik

/ˌkaɪərəˈpræktɪk/

A system of complementary medicine based on the diagnosis and manipulative treatment of misalignments of the joints.

Chlamydia

klah-MID-ee-ah

/kləˈmɪdiə/

A very common sexually transmitted infection caused by bacteria.

Chloasma

kloh-AZ-mah

/kloʊˈæzmə/

A temporary condition, typically caused by hormonal changes during pregnancy, in which large brown patches form on the skin, mainly on the face.

Chloroma

kloh-ROH-mah

/kloʊˈroʊmə/

A rare malignant tumor composed of granulocyte precursor cells, having a greenish color.

Cholagogue

KOL-ah-gog

/ˈkɒləɡɒɡ/

An agent that promotes the discharge of bile from the system, purging it downward.

Cholangiography

koh-lan-jee-OG-rah-fee

/koʊˌlændʒiˈɒɡrəfi/

Radiographic examination of the bile ducts after injection of a contrast medium.

Cholangitis

koh-lan-JY-tis

/ˌkoʊlænˈdʒaɪtɪs/

Inflammation of the bile duct system.

Cholecalciferol

koh-lee-kal-SIF-er-ol

/ˌkoʊlikælˈsɪfərɒl/

A form of vitamin D, also known as vitamin D3, synthesized in the skin when exposed to sunlight.

Cholecystectomy

koh-lee-sis-TEK-toh-mee

/ˌkoʊləsɪˈstɛktəmi/

Surgical removal of the gallbladder.

Cholecystitis

koh-lee-sis-TY-tis

/ˌkoʊləsɪˈstaɪtɪs/

Inflammation of the gallbladder, often caused by gallstones.

Choledochoenterostomy

koh-led-oh-koh-en-ter-OS-toh-mee

/koʊˌlɛdəkoʊˌɛntəˈrɒstəmi/

Surgical creation of a communication between the common bile duct and the intestine.

Choledochus

koh-LED-oh-kus

/koʊˈlɛdəkəs/

The common bile duct.

Cholelithiasis

koh-lee-lih-THY-ah-sis

/ˌkoʊləlɪˈθaɪəsɪs/

The formation or presence of gallstones in the gallbladder.

Cholera

KOL-er-ah

/ˈkɒlərə/

An infectious and often fatal bacterial disease of the small intestine, typically contracted from infected water supplies.

Cholestasis

koh-lee-STAY-sis

/ˌkoʊləˈsteɪsɪs/

A condition where bile cannot flow from the liver to the duodenum.

Cholesterol

koh-LES-ter-ol

/kəˈlɛstərɒl/

A compound of the sterol type found in most body tissues; important for membrane fluidity but associated with atherosclerosis at high levels.

Chondroblast

KON-droh-blast

/ˈkɒndroʊblæst/

A cell that actively produces the components of the extracellular matrix in cartilage.

Chondrocostal

kon-droh-KOS-tal

/ˌkɒndroʊˈkɒstəl/

Relating to the costal cartilages and the ribs.

Chondrocyte

KON-droh-syt

/ˈkɒndrəˌsaɪt/

A cell which has secreted the matrix of cartilage and become embedded in it.

Chondroma

kon-DROH-mah

/kɒnˈdroʊmə/

A benign tumor of cartilage cells.

Chondromalacia

kon-droh-mah-LAY-shah

/ˌkɒndroʊməˈleɪʃə/

Softening of the cartilage, most commonly affecting the underside of the kneecap (patella).

Chondrosarcoma

kon-droh-sar-KOH-mah

/ˌkɒndroʊsɑːrˈkoʊmə/

A type of malignant bone tumor that primarily affects the cartilage cells.

Chordae Tendineae

KOR-dee ten-DIN-ee-ee

/ˈkɔːrdiː tɛnˈdɪniːiː/

Small, string-like structures in the heart that connect the papillary muscles to the heart valves; often called heart strings.

Chorea

kor-EE-ah

/kɔːˈriːə/

A neurological disorder characterized by jerky involuntary movements affecting especially the shoulders, hips, and face.

Choriocarcinoma

kor-ee-oh-kar-sih-NOH-mah

/ˌkɔːrioʊˌkɑːrsɪˈnoʊmə/

A fast-growing form of cancer that develops in the uterus, originating from placental cells.

Chorion

KOR-ee-on

/ˈkɔːriɒn/

The outermost membrane surrounding an embryo, contributing to the formation of the placenta.

Chorioretinitis

kor-ee-oh-ret-ih-NY-tis

/ˌkɔːrioʊˌrɛtɪˈnaɪtɪs/

Inflammation of the choroid and retina of the eye.

Choroid

KOR-oyd

/ˈkɔːrɔɪd/

The pigmented vascular layer of the eyeball between the retina and the sclera.

Choroid Plexus

KOR-oyd PLEK-sus

/ˈkɔːrɔɪd ˈplɛksəs/

A network of blood vessels in each ventricle of the brain, derived from the pia mater and producing cerebrospinal fluid.

Chromaffin cells

KROH-mah-fin selz

/ˈkroʊməfɪn sɛlz/

Cells in the adrenal medulla that secrete epinephrine and norepinephrine.

Chromatid

KROH-mah-tid

/ˈkroʊmətɪd/

Each of the two threadlike strands into which a chromosome divides longitudinally during cell division.

Chromatography

kroh-mah-TOG-rah-fee

/ˌkroʊməˈtɒɡrəfi/

A laboratory technique for the separation of a mixture into its individual components.

Chromosome

KROH-moh-sohm

/ˈkroʊməˌsoʊm/

A threadlike structure of nucleic acids and protein found in the nucleus, carrying genetic information in the form of genes.

Chronic

KRON-ik

/ˈkrɒnɪk/

Persisting for a long time or constantly recurring, typically applied to diseases lasting more than three months.

Chyle

KYL

/kaɪl/

A milky fluid consisting of fat droplets and lymph, drained from the small intestine into the lymphatic system during digestion.

Chylomicron

ky-loh-MY-kron

/ˌkaɪloʊˈmaɪkrɒn/

A droplet of fat present in the blood or lymph after absorption from the small intestine.

Chyluria

ky-LOO-ree-ah

/kaɪˈlʊəriə/

A condition in which chyle is present in the urine, giving it a milky appearance.

Chyme

KYM

/kaɪm/

The pulpy acidic fluid which passes from the stomach to the small intestine, consisting of gastric juices and partly digested food.

Chymopapain

ky-moh-pah-PAY-in

/ˌkaɪmoʊpəˈpeɪɪn/

A proteolytic enzyme used medically to dissolve herniated intervertebral discs.

Cicatrization

sik-ah-trih-ZAY-shun

/ˌsɪkətrɪˈzeɪʃən/

The process of scar formation at the site of a healing wound.

Cilia

SIL-ee-ah

/ˈsɪliə/

Short, microscopic hairlike vibrating structures found in large numbers on the surface of certain cells, used for movement or moving fluid.

Ciliary Body

SIL-ee-air-ee BOD-ee

/ˈsɪliˌɛri ˈbɒdi/

The part of the eye that connects the iris to the choroid and controls the shape of the lens.

Circadian

ser-KAY-dee-an

/sɜːrˈkeɪdiən/

Relating to biological processes that occur regularly in a cycle of approximately 24 hours.

Circumcision

ser-kum-SIZH-un

/ˌsɜːrkəmˈsɪʒən/

The surgical removal of the foreskin (prepuce) from the human penis.

Cirrhosis

sih-ROH-sis

/sɪˈroʊsɪs/

A chronic disease of the liver marked by degeneration of cells, inflammation, and fibrous thickening of tissue.

Cisterna

sis-TER-nah

/sɪˈstɜːrnə/

A fluid-filled sac or reservoir, such as the cisterna magna in the brain.

Clast

KLAST

/klæst/

A cell that breaks down or absorbs something, such as an osteoclast (bone-absorbing cell).

Claudication

klaw-dih-KAY-shun

/ˌklɔːdɪˈkeɪʃən/

Cramping pain in the leg is induced by exercise, typically caused by obstruction of the arteries.

Clavicle

KLAV-ih-kul

/ˈklævɪkəl/

Technical term for the collarbone.

Climacteric

kly-MAK-ter-ik

/klaɪˈmæktərɪk/

A period of life characterized by a decrease in reproductive capacity; menopause in women.

Climax

KLY-maks

/ˈklaɪmæks/

The peak or culmination of a physiological process, such as an orgasm.

Clinical

KLIN-ih-kul

/ˈklɪnɪkəl/

Relating to the observation and treatment of actual patients rather than theoretical or laboratory studies.

Clitoris

KLIT-oh-ris

/ˈklɪtərɪs/

A small sensitive and erectile part of the female genitals at the anterior end of the vulva.

Clone

KLOHN

/kloʊn/

A group of genetically identical cells or organisms derived from a single ancestor.

Clonus

KLOH-nus

/ˈkloʊnəs/

Muscular spasm involving repeated, often rhythmic, rapid contractions and relaxations.

Clostridium

klos-TRID-ee-um

/klɒˈstrɪdiəm/

A genus of anaerobic, spore-forming bacteria, including those that cause tetanus and botulism.

Clotting factors

KLOT-ing FAK-torz

/ˈklɒtɪŋ ˈfæktərz/

Proteins in the blood that act in a sequence to stop bleeding by forming a clot.

Coagulation

koh-ag-yoo-LAY-shun

/koʊˌæɡjuˈleɪʃən/

The process by which blood changes from a liquid to a gel, forming a blood clot.

Coarctation

koh-ark-TAY-shun

/ˌkoʊɑːrkˈteɪʃən/

Congenital narrowing of a short section of the aorta.

Coccus

KOK-us

/ˈkɒkəs/

Any spherical or roughly spherical bacterium.

Coccyx

KOK-siks

/ˈkɒksɪks/

A small, triangular bone at the base of the spinal column; the tailbone.

Cochlea

KOK-lee-ah

/ˈkɒkliə/

The spiral cavity of the inner ear containing the organ of Corti, which produces nerve impulses in response to sound vibrations.

Cognition

kog-NISH-un

/kɒɡˈnɪʃən/

The mental action or process of acquiring knowledge and understanding through thought, experience, and the senses.

Coitus

KOH-ih-tus

/ˈkoʊɪtəs/

Sexual intercourse between a male and a female.

Colic

KOL-ik

/ˈkɒlɪk/

Severe, often fluctuating pain in the abdomen caused by intestinal gas or obstruction.

Colitis

koh-LY-tis

/koʊˈlaɪtɪs/

Inflammation of the lining of the colon.

Collagen

KOL-ah-jen

/ˈkɒlədʒən/

The main structural protein found in skin and other connective tissues.

Colles' Fracture

KOL-eez FRAK-chur

/ˈkɒliːz ˈfræktʃər/

A fracture of the lower end of the radius in the wrist with characteristic backward displacement of the hand.

Colloid

KOL-oyd

/ˈkɒlɔɪd/

A homogeneous, non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance.

Colonoscopy

koh-lon-OS-koh-pee

/ˌkoʊləˈnɒskəpi/

A procedure in which a flexible fiber-optic instrument is inserted through the anus in order to examine the colon.

Colostomy

koh-LOS-toh-mee

/kəˈlɒstəmi/

A surgical operation in which a piece of the colon is diverted to an artificial opening in the abdominal wall so as to bypass a damaged part of the colon.

Colostrum

koh-LOS-trum

/kəˈlɒstrəm/

The first form of milk produced by the mammary glands of mammals immediately following delivery of the newborn.

Coma

KOH-mah

/ˈkoʊmə/

A state of deep unconsciousness that lasts for a prolonged or indefinite period, caused especially by severe injury or illness.

Comedo

KOM-eh-doh

/ˈkɒmɪdoʊ/

A clogged hair follicle (pore) in the skin; the primary lesion of acne.

Computed Tomography

kom-PYOO-ted toh-MOG-rah-fee

/kəmˈpjuːtɪd təˈmɒɡrəfi/

A medical imaging technique (CT scan) that uses computer-processed combinations of multiple X-ray measurements taken from different angles.

Concussion

kun-KUSH-un

/kənˈkʌʃən/

A temporary unconsciousness or confusion caused by a blow on the head.

Congenital

kun-JEN-ih-tul

/kənˈdʒɛnɪtəl/

Refers to a condition present from birth.

Congestive Heart Failure

kon-JES-tiv HART FAYL-yur

/kənˈdʒɛstɪv hɑːrt ˈfeɪljər/

A chronic progressive condition that affects the pumping power of your heart muscles.

Conjunctiva

kon-junk-TY-vah

/ˌkɒndʒʌŋkˈtaɪvə/

The mucous membrane that covers the front of the eye and lines the inside of the eyelids.

Conjunctivitis

kon-junk-tih-VY-tis

/kənˌdʒʌŋktɪˈvaɪtɪs/

Inflammation of the conjunctiva of the eye, commonly known as pink eye.

Connective Tissue

koh-NEK-tiv TISH-oo

/kəˈnɛktɪv ˈtɪʃuː/

Tissue that connects, supports, binds, or separates other tissues or organs.

Contagious

kun-TAY-jus

/kənˈteɪdʒəs/

Spread from one person or organism to another by direct or indirect contact.

Contraception

kon-trah-SEP-shun

/ˌkɒntrəˈsɛpʃən/

The deliberate use of artificial methods or other techniques to prevent pregnancy.

Contracture

kon-TRAK-chur

/kənˈtræktʃər/

A condition of shortening and hardening of muscles, tendons, or other tissue, often leading to deformity and rigidity of joints.

Contraindication

kon-trah-in-dih-KAY-shun

/ˌkɒntrəˌɪndɪˈkeɪʃən/

A specific situation in which a drug, procedure, or surgery should not be used because it may be harmful to the person.

Contusion

kun-TOO-zhun

/kənˈtjuːʒən/

A region of injured tissue or skin in which blood capillaries have been ruptured; a bruise.

Convalescence

kon-vah-LES-ens

/ˌkɒnvəˈlɛsəns/

Time spent recovering from an illness or medical treatment; recuperation.

Convulsion

kun-VUL-shun

/kənˈvʌlʃən/

A sudden, violent, irregular movement of a limb or of the body, caused by involuntary contraction of muscles.

Cor Pulmonale

KOR pul-moh-NAY-lee

/ˌkɔːr ˌpʌlməˈneɪli/

Abnormal enlargement of the right side of the heart as a result of disease of the lungs or the pulmonary blood vessels.

Cornea

KOR-nee-ah

/ˈkɔːrniə/

The transparent layer forming the front of the eye.

Coronal Plane

KOR-oh-nal PLAYN

/kəˈroʊnl pleɪn/

An anatomical plane that divides the body into dorsal and ventral (back and front) sections.

Coronary Arteries

KOR-oh-nair-ee AR-ter-eez

/ˈkɒrənəri ˈɑːrtəriz/

Arteries supplying blood to the heart muscle.

Corpus Callosum

KOR-pus kah-LOH-sum

/ˈkɔːrpəs kəˈloʊsəm/

A broad band of nerve fibers joining the two hemispheres of the brain.

Corpus Luteum

KOR-pus LOO-tee-um

/ˈkɔːrpəs ˈluːtiəm/

A hormone-secreting structure that develops in an ovary after an ovum has been discharged.

Cortex

KOR-teks

/ˈkɔːrtɛks/

The outer layer of an organ or structure, such as the cerebral cortex or adrenal cortex.

Corticosteroid

kor-tih-koh-STEER-oyd

/ˌkɔːrtɪkoʊˈstɪərɔɪd/

Any of a group of steroid hormones produced in the adrenal cortex or made synthetically.

Coryza

koh-RY-zah

/kəˈraɪzə/

Catarrhal inflammation of the mucous membrane in the nose, caused especially by a cold or by hay fever.

Costal

KOS-tal

/ˈkɒstəl/

Relating to the ribs.

Cranium

KRAY-nee-um

/ˈkreɪniəm/

The skull, especially the part enclosing the brain.

Creatinine

kree-AT-ih-neen

/kriˈætɪniːn/

A compound which is produced by metabolism of creatine and excreted in the urine; high levels often indicate kidney dysfunction.

Crepitus

KREP-ih-tus

/ˈkrɛpɪtəs/

A grating sound or sensation produced by friction between bone and cartilage or the fractured parts of a bone.

Cretinism

KREE-tin-izm

/ˈkriːtɪnɪzəm/

A condition of severely stunted physical and mental growth due to untreated congenital deficiency of thyroid hormones.

Cricoid

KRY-koyd

/ˈkraɪkɔɪd/

The ring-shaped cartilage of the larynx.

Crohn's Disease

KROHNZ dih-ZEEZ

/kroʊnz dɪˈziːz/

A chronic inflammatory disease of the intestines, especially the colon and ileum, associated with ulcers and fistulae.

Croup

KROOP

/kruːp/

Inflammation of the larynx and trachea in children, associated with infection and causing a barking cough.

Cryosurgery

kry-oh-SER-jer-ee

/ˌkraɪoʊˈsɜːrdʒəri/

Surgery using the local application of intense cold to destroy unwanted tissue.

Cryptorchidism

krip-TOR-kih-dizm

/krɪpˈtɔːrkɪdɪzəm/

A condition in which one or both of the testes fail to descend from the abdomen into the scrotum.

Cubital

KYOO-bih-tul

/ˈkjuːbɪtəl/

Relating to the elbow or the forearm.

Culture

KUL-chur

/ˈkʌltʃər/

The cultivation of bacteria, tissue cells, or other living symbols in a prepared medium.

Cuneiform

kyoo-NEE-ih-form

/kjuːˈniːəfɔːrm/

Wedge-shaped; applied to three bones in the foot and one in the wrist.

Curettage

kyoo-reh-TAHZH

/ˌkjʊərɪˈtɑːʒ/

The use of a curette, typically to remove tissue from the wall of a body cavity, such as the uterus.

Cushing's Syndrome

KOOSH-ingz SIN-drohm

/ˈkʊʃɪŋz ˈsɪndroʊm/

A metabolic disorder caused by overproduction of corticosteroid hormones by the adrenal cortex.

Cutaneous

kyoo-TAY-nee-us

/kjuːˈteɪniəs/

Relating to or affecting the skin.

Cyanosis

sy-ah-NOH-sis

/ˌsaɪəˈnoʊsɪs/

A bluish discoloration of the skin resulting from poor circulation or inadequate oxygenation of the blood.

Cycloplegia

sy-kloh-PLEE-jah

/ˌsaɪkloʊˈpliːdʒə/

Paralysis of the ciliary muscle of the eye, resulting in a loss of accommodation.

Cyst

SIST

/sɪst/

An abnormal, membranous sac or cavity of the body containing fluid or semi-solid material.

Cystic Fibrosis

SIS-tik fy-BROH-sis

/ˈsɪstɪk faɪˈbroʊsɪs/

A hereditary disorder affecting the exocrine glands, causing the production of abnormally thick mucus.

Cystitis

sis-TY-tis

/sɪˈstaɪtɪs/

Inflammation of the urinary bladder.

Cystocele

SIS-toh-seel

/ˈsɪstəˌsiːl/

A condition in which the wall between a woman's bladder and her vagina weakens and allows the bladder to droop into the vagina.

Cystoscopy

sis-TOS-koh-pee

/sɪˈstɒskəpi/

A procedure that allows a doctor to examine the lining of the bladder and the tube that carries urine out of the body (urethra).

Cytology

sy-TOL-oh-jee

/saɪˈtɒlədʒi/

The branch of biology and medicine concerned with the structure and function of plant and animal cells.

Cytoplasm

SY-toh-plazm

/ˈsaɪtəˌplæzəm/

The material or protoplasm within a living cell, excluding the nucleus.

Cytotoxic

sy-toh-TOK-sik

/ˌsaɪtəˈtɒksɪk/

Toxic to living cells; often used to describe drugs used in chemotherapy to kill cancer cells.