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X-chromatin

EKS-KROH-mah-tin

/ˈɛks ˈkroʊmətɪn/

Another name for a Barr body; the inactive X chromosome in a female somatic cell.

X-chromosomal

EKS-kroh-moh-SOH-mul

/ˈɛksˌkroʊməˈsoʊməl/

Relating to the X chromosome.

X-chromosome

EKS KROH-moh-sohm

/ˈɛks ˈkroʊməˌsoʊm/

One of the two sex chromosomes; females have two X chromosomes, while males have one X and one Y.

X-factor

EKS-fak-tor

/ˈɛks ˌfæktər/

In microbiology, a growth factor (hemin) required by certain bacteria like Haemophilus influenzae.

X-irradiation

EKS-ih-ray-dee-AY-shun

/ˈɛksɪˌreɪdiˈeɪʃən/

Treatment or exposure to X-rays.

X-linked

EKS-lingkt

/ˈɛkslɪŋkt/

Relating to a gene located on the X chromosome.

X-linked Adrenoleukodystrophy (X-ALD)

ah-dree-noh-loo-koh-DIS-truh-fee

/əˌdriːnoʊˌluːkoʊˈdɪstrəfi/

A genetic disorder that damages the myelin sheath of nerves and the adrenal glands.

X-linked Agammaglobulinemia

EKS-lingkt

/ˈɛkslɪŋkt eɪˌɡæməˌɡlɒbjʊlɪˈniːmiə/

An inherited primary immunodeficiency disease where the body produces very few B cells.

X-linked Agammaglobulinemia

ah-gam-ah-glob-yoo-lin-EE-mee-ah

/ˈɛkslɪŋkt eɪˌɡæməˌɡlɒbjʊlɪˈniːmiə/

Bruton's disease; a genetic disorder where the body cannot produce antibodies.

X-linked Agammaglobulinemia (XLA)

ah-gam-ah-glob-yoo-lin-EE-mee-ah

/ˌeɪɡæməˌɡlɒbjʊlɪˈniːmiə/

A primary immunodeficiency where patients lack B cells and antibodies.

X-linked dominant

DOM-ih-nunt

/ˈɛkslɪŋkt ˈdɒmɪnənt/

A mode of genetic inheritance where a dominant gene is carried on the X chromosome.

X-linked hypophosphatemia

hy-poh-fos-fah-TEE-mee-ah

/ˈɛkslɪŋkt ˌhaɪpoʊˌfɒsfəˈtiːmiə/

An inherited disorder characterized by low levels of phosphate in the blood, leading to rickets or osteomalacia.

X-linked Ichthyosis

EKS-lingkt ik-thee-OH-sis

/ˈɛkslɪŋkt ˌɪkθiˈoʊsɪs/

A skin condition caused by a deficiency in an enzyme that leads to scaly, dry skin.

X-linked ichthyosis

ik-thee-OH-sis

/ˌɪkθiˈoʊsɪs/

A skin disorder characterized by persistent, dark, 'fish-like' scales.

X-linked lymphoproliferative syndrome

lim-foh-proh-LIF-er-ah-tiv

/ˈɛkslɪŋkt ˌlɪmfoʊproʊˈlɪfərətɪv/

A rare immunodeficiency characterized by an extreme, often fatal, response to the Epstein-Barr virus (EBV).

X-linked Mental Retardation

EKS-lingkt

/ˈɛkslɪŋkt ˈmɛntəl ˌriːtɑːrˈdeɪʃən/

A group of disorders where cognitive impairment is linked to genes on the X chromosome (e.g., Fragile X).

X-linked protoporphyria

proh-toh-por-FEER-ee-ah

/ˌproʊtoʊpɔːrˈfɪriə/

A rare metabolic disorder causing extreme sensitivity to sunlight.

X-linked recessive

ree-SES-iv

/ˈɛkslɪŋkt rɪˈsɛsɪv/

A mode of genetic inheritance where a recessive gene is carried on the X chromosome (e.g., hemophilia).

X-linked sideroblastic anemia

sid-er-oh-BLAS-tik

/ˌsɪdərəˈblæstɪk əˈniːmiə/

An inherited form of anemia where the body can't incorporate iron into hemoglobin properly.

X-linked spinal muscular atrophy

SPY-nul MUS-kyoo-lar

/ˈɛkslɪŋkt ˈspaɪnəl ˈmʌskjʊlər ˈætrəfi/

A rare form of SMA caused by mutations on the X chromosome, typically affecting males from birth.

X-organ

EKS OR-gun

/ˈɛks ˌɔːrɡən/

A neurosecretory organ found in the eyestalk of crustaceans; used in comparative biology/toxicology.

X-ray

EKS-ray

/ˈɛksreɪ/

A form of electromagnetic radiation used to create images of the inside of the body.

X-ray crystallography

kris-tah-LOG-rah-fee

/ˈɛksreɪ ˌkrɪstəˈlɒɡrəfi/

A technique used to determine the molecular structure of a crystal (like a protein) by measuring how X-rays are scattered by it.

X-ray diffraction

dih-FRAK-shun

/ˈɛksreɪ dɪˈfrækʃən/

A technique used to study the atomic structure of biological molecules like DNA and proteins.

X-ray film

EKS-ray FILM

/ˈɛksreɪ fɪlm/

The photographic material used to capture an X-ray image.

X-ray tube

EKS-ray TOOB

/ˈɛksreɪ tuːb/

The component of an X-ray machine where electrical energy is converted into X-rays.

X-Z line

EKS-ZEE

/ˈɛks ziː laɪn/

In ophthalmology, a hypothetical line used for calculating certain dimensions within the eye.

Xanth-

ZANTH

/zænθ/

A prefix meaning yellow.

Xanthaline

ZAN-thah-leen

/ˈzænθəliːn/

An alkaloid derived from opium, historically studied for its sedative properties.

Xanthate

ZAN-thayt

/ˈzænθeɪt/

A salt or ester of xanthic acid, used in some specialized biochemical laboratory processes.

Xanthelasma

zan-theh-LAZ-mah

/ˌzænθɪˈlæzmə/

Yellowish deposits of cholesterol underneath the skin, typically on or around the eyelids.

Xanthelasmoidea

zan-theh-laz-MOY-dee-ah

/ˌzænθɪlæzˈmɔɪdiə/

A form of cutaneous mastocytosis characterized by yellowish-brown spots on the skin.

Xanthematous

zan-THEM-ah-tus

/zænˈθɛmətəs/

Relating to or characterized by a yellow skin rash.

Xanthemia

zan-THEE-mee-ah

/zænˈθiːmiə/

The presence of yellow pigment (carotenoids) in the blood.

Xanthic

ZAN-thik

/ˈzænθɪk/

Pertaining to or having a yellow color; specifically relating to xanthine.

Xanthic calculus

ZAN-thik KAL-kyoo-lus

/ˈzænθɪk ˈkælkjʊləs/

A rare type of urinary stone composed mostly of xanthine.

Xanthine

ZAN-theen

/ˈzænθiːn/

A purine base found in most human body tissues and fluids.

Xanthine alkaloid

ZAN-theen AL-kah-loyd

/ˈzænθiːn ˈælkəˌlɔɪd/

A group of alkaloids including caffeine, theobromine, and theophylline.

Xanthine dehydrogenase

ZAN-theen dee-hy-DROJ-eh-nays

/ˈzænθiːn diːˌhaɪˈdrɒdʒəneɪs/

An enzyme that acts upon hypoxanthine and xanthine; a variation of xanthine oxidase.

Xanthine oxidase

ZAN-theen OK-sih-days

/ˈzænθiːn ˈɒksɪdeɪs/

An enzyme that catalyzes the oxidation of hypoxanthine to xanthine and xanthine to uric acid.

Xanthinuria

zan-thin-YOOR-ee-ah

/ˌzænθɪˈnjʊəriə/

A rare genetic disorder characterized by a deficiency of xanthine oxidase, leading to high levels of xanthine in the urine.

Xanthinuria, hereditary

zan-thin-YOOR-ee-ah

/ˌzænθɪˈnjʊəriə/

A genetic condition leading to xanthine stones and muscle pain due to xanthine oxidase deficiency.

Xanthism

ZAN-thizm

/ˈzænθɪzəm/

A rare genetic condition in which yellow or orange pigments replace normal dark pigments (melanin).

Xanthochromatic

zan-thoh-kroh-MAT-ik

/ˌzænθəkrəˈmætɪk/

Pertaining to or having a yellow color.

Xanthochromatic

zan-thoh-kroh-MAT-ik

/ˌzænθəkrəˈmætɪk/

Exhibiting a yellow color, particularly in reference to abnormal body fluids.

Xanthochromia

zan-thoh-KROH-mee-ah

/ˌzænθəˈkroʊmiə/

The yellowish appearance of cerebrospinal fluid, indicating a prior subarachnoid hemorrhage.

Xanthocreatinine

zan-thoh-kree-AT-ih-neen

/ˌzænθəkriˈætɪniːn/

A poisonous yellow leucomaine found in muscle tissue.

Xanthocyanopsia

zan-thoh-sy-ah-NOP-see-ah

/ˌzænθəˌsaɪəˈnɒpsiə/

A form of color blindness in which yellow and blue are the only colors perceived.

Xanthocyanopsia

zan-thoh-sy-ah-NOP-see-ah

/ˌzænθəˌsaɪəˈnɒpsiə/

A form of partial color blindness where only yellow and blue are perceived.

Xanthocyanopsia

zan-thoh-sy-ah-NOP-see-ah

/ˌzænθəˌsaɪəˈnɒpsiə/

Color blindness in which yellow and blue are the only colors seen.

Xanthocyte

ZAN-thoh-syt

/ˈzænθəsaɪt/

A cell containing yellow pigment.

Xanthoderma

zan-thoh-DER-mah

/ˌzænθəˈdɜːrmə/

A yellowish discoloration of the skin.

Xanthodont

ZAN-thoh-dont

/ˈzænθəˌdɒnt/

A person with yellow teeth.

Xanthodontous

zan-thoh-DON-tus

/ˌzænθəˈdɒntəs/

Having yellow-colored teeth.

Xanthodontous

zan-thoh-DON-tus

/ˌzænθəˈdɒntəs/

Characterized by having yellow teeth.

Xanthofibroma

zan-thoh-fy-BROH-mah

/ˌzænθəfaɪˈbroʊmə/

A fibroma (benign tumor) containing yellow fatty material.

Xanthogenic

zan-thoh-JEN-ik

/ˌzænθəˈdʒɛnɪk/

Producing or causing a yellow color.

Xanthoglobulin

zan-thoh-GLOB-yoo-lin

/ˌzænθəˈɡlɒbjʊlɪn/

A yellow pigment found in the liver and pancreas under certain pathological conditions.

Xanthogranuloma

zan-thoh-gran-yoo-LOH-mah

/ˌzænθəˌɡrænjʊˈloʊmə/

A tumor-like mass composed of granulations with a high content of lipid-laden cells.

Xanthogranulomatous pyelonephritis

py-eh-loh-neh-FRY-tis

/ˌzænθəˌɡrænjʊˈloʊmətəs ˌpaɪəloʊnɪˈfraɪtɪs/

A rare, chronic inflammatory condition resulting in a nonfunctioning kidney.

Xantholabe

ZAN-thoh-layb

/ˈzænθəˌleɪb/

The yellow-sensitive pigment found in the retinal cones of the eye.

Xanthoma

zan-THOH-mah

/zænˈθoʊmə/

A fatty deposit or tumor that forms under the skin.

Xanthoma diabeticorum

dy-ah-bet-ih-KOR-um

/zænˈθoʊmə ˌdaɪəˌbɛtɪˈkɔːrəm/

A skin condition associated with severe diabetes, characterized by sudden crops of small, firm, yellow-pink papules.

Xanthoma disseminatum

dih-sem-ih-NAY-tum

/zænˈθoʊmə dɪˌsɛmɪˈneɪtəm/

A rare benign condition where small yellow-brown bumps appear on the skin and mucous membranes.

Xanthoma palpebrarum

pal-peh-BRAR-um

/zænˈθoʊmə ˌpælpiˈbrɛərəm/

Xanthelasma of the eyelids.

Xanthoma tuberosum

too-ber-OH-sum

/zænˈθoʊmə ˌtjuːbəˈroʊsəm/

Large, yellowish nodules that develop over joints, particularly the elbows and knees.

Xanthomatosis

zan-thoh-mah-TOH-sis

/ˌzænθəməˈtoʊsɪs/

A condition in which numerous xanthomas develop on the body.

Xanthomatosis, cerebrotendinous

ser-ee-broh-TEN-dih-nus

/ˌsɛrɪbroʊˈtɛndɪnəs ˌzænθəməˈtoʊsɪs/

A rare metabolic disorder causing the buildup of cholestanol in the brain and tendons.

Xanthomatous

zan-THOH-mah-tus

/zænˈθoʊmətəs/

Pertaining to or characterized by xanthomas (fatty skin deposits).

Xanthomyeloma

zan-thoh-my-eh-LOH-mah

/ˌzænθəˌmaɪəˈloʊmə/

A yellow-colored tumor of the spinal cord.

Xanthomyeloma

zan-thoh-my-eh-LOH-mah

/ˌzænθəˌmaɪəˈloʊmə/

A xanthoma that has the histological appearance of a myeloma.

Xanthomyeloma

zan-thoh-my-eh-LOH-mah

/ˌzænθəˌmaɪəˈloʊmə/

A rare tumor containing lipid-laden cells, appearing yellow on gross inspection.

Xanthone

ZAN-thohn

/ˈzænθoʊn/

A yellow crystalline compound used as an intermediate in the synthesis of various drugs.

Xanthophane

ZAN-thoh-fayn

/ˈzænθəfeɪn/

A yellow pigment in the retinal cones of certain animals.

Xanthophyll

ZAN-thoh-fil

/ˈzænθəfɪl/

A yellow pigment found in the macula of the human eye that helps protect it from high-energy light.

Xanthoplasty

ZAN-thoh-plas-tee

/ˈzænθəˌplæsti/

A theoretical or historical term for surgical grafting using yellow-pigmented tissues.

Xanthoproteic acid

zan-thoh-proh-TEE-ik

/ˌzænθəproʊˈtiːɪk ˈæsɪd/

The yellow product formed when nitric acid reacts with proteins containing aromatic groups.

Xanthoproteic reaction

proh-TEE-ik

/ˌzænθəproʊˈtiːɪk/

A test for the presence of proteins containing aromatic amino acids, which turn yellow when treated with nitric acid.

Xanthoprotein

zan-thoh-PROH-teen

/ˌzænθəˈproʊtiːn/

A yellow substance produced by the action of nitric acid on proteins.

Xanthopsia

zan-THOP-see-ah

/zænˈθɒpsiə/

A visual disturbance where everything appears yellow; can be a side effect of digitalis toxicity.

Xanthopsin

zan-THOP-sin

/zænˈθɒpsɪn/

Visual yellow; the yellow substance formed by the action of light on rhodopsin.

Xanthopsin

zan-THOP-sin

/zænˈθɒpsɪn/

The yellow decomposition product of rhodopsin; also known as visual yellow.

Xanthopterin

zan-THOP-ter-in

/zænˈθɒptərɪn/

A yellow crystalline pigment found in the wings of butterflies and in human urine.

Xanthopurpurin

zan-thoh-PUR-pyoo-rin

/ˌzænθəˈpɜːrpjʊrɪn/

A yellow isomer of alizarin used as a biological stain.

Xanthosarcoma

zan-thoh-sar-KOH-mah

/ˌzænθəsɑːrˈkoʊmə/

A giant cell sarcoma of the tendon sheaths that contains xanthoma cells.

Xanthosarcoma

zan-thoh-sar-KOH-mah

/ˌzænθəsɑːrˈkoʊmə/

A malignant tumor that shows yellow discoloration due to lipid content.

Xanthosiderosis

zan-thoh-sid-er-OH-sis

/ˌzænθəˌsɪdəˈroʊsɪs/

Yellowish discoloration of the skin due to the presence of iron-containing pigment.

Xanthosine

ZAN-thoh-seen

/ˈzænθəsiːn/

A nucleoside formed by the attachment of xanthine to a ribose ring.

Xanthosis

zan-THOH-sis

/zænˈθoʊsɪs/

Yellowish discoloration of the skin from the ingestion of carotene-rich foods.

Xanthosis

zan-THOH-sis

/zænˈθoʊsɪs/

A yellowish discoloration of the skin, often from high intake of carotene (carotenemia).

Xanthosis palpebrarum

pal-peh-BRAR-um

/zænˈθoʊsɪs ˌpælpiˈbrɛərəm/

Yellowish discoloration of the eyelids.

Xanthurenic acid

zan-thyoor-EN-ik

/ˌzænθjʊˈrɛnɪk ˈæsɪd/

A chemical byproduct of tryptophan metabolism; its presence in urine is a marker for Vitamin B6 deficiency.

Xanthuria

zan-THYOOR-ee-ah

/zænˈθjʊəriə/

The excretion of yellow-colored urine, typically containing xanthine.

Xen-

ZEN

/zɛn/

A prefix meaning foreign, strange, or different.

Xenobiotic

zee-noh-by-OT-ik

/ˌzɛnəbaɪˈɒtɪk/

A chemical substance found within an organism that is not naturally produced or expected to be present within it (e.g., drugs, pollutants).

Xenobiotic metabolism

zee-noh-by-OT-ik

/ˌzɛnəbaɪˈɒtɪk mɪˈtæbəˌlɪzəm/

The process by which the body chemically modifies foreign compounds, primarily in the liver.

Xenobiotic-induced

zee-noh-by-OT-ik

/ˌzɛnəbaɪˈɒtɪk/

Relating to a medical condition caused by foreign chemical substances like drugs or pesticides.

Xenodiagnosis

zee-noh-dy-ah-GNO-sis

/ˌzɛnəˌdaɪəɡˈnoʊsɪs/

A diagnostic method using a vector (like a bug) to detect a parasite in a human (e.g., Chagas disease).

Xenogenesis

zen-oh-JEN-eh-sis

/ˌzɛnəˈdʒɛnəsɪs/

The supposed production of offspring that are completely different from either parent.

Xenogenous

zen-OJ-eh-nus

/zɛˈnɒdʒənəs/

Originating outside the organism or caused by a foreign body.

Xenogenous

zeh-NOJ-eh-nus

/zɛˈnɒdʒənəs/

Produced outside the organism; originated by a foreign body.

Xenogenous

zen-OJ-eh-nus

/zɛˈnɒdʒənəs/

Originating outside the organism.

Xenograft

ZEE-noh-graft

/ˈzɛnəˌɡræft/

A tissue graft or organ transplant from a donor of a different species from the recipient.

Xenografting

ZEE-noh-graf-ting

/ˈzɛnəˌɡræftɪŋ/

The surgical act of performing a species-to-species transplant.

Xenomania

zee-noh-MAY-nee-ah

/ˌzɛnəˈmeɪniə/

An obsession with foreign things or people.

Xenon

ZEE-non

/ˈziːnɒn/

A heavy noble gas used in diagnostic imaging (Xenon-133) to measure lung ventilation and blood flow.

Xenon-133

ZEE-non

/ˈziːnɒn/

A radioactive isotope of xenon used to assess pulmonary ventilation.

Xenoparasite

zee-noh-PAIR-ah-syt

/ˌzɛnəˈpærəˌsaɪt/

A parasite that is normally found on a different host species but has infected a human.

Xenophobe

ZEE-noh-fohb

/ˈzɛnəfoʊb/

A person who has an irrational fear or dislike of people from other countries or cultures.

Xenophobia

zen-oh-FOH-bee-ah

/ˌzɛnəˈfoʊbiə/

In clinical psychology, an abnormal fear or hatred of strangers or foreigners.

Xenophthalmia

zen-of-THAL-mee-ah

/ˌzɛnɒfˈθælmiə/

Inflammation of the eye caused by a foreign body.

Xenophthalmia

zen-of-THAL-mee-ah

/ˌzɛnɒfˈθælmiə/

Eye inflammation specifically caused by the presence of a foreign object.

Xenophthalmia

zen-of-THAL-mee-ah

/ˌzɛnɒfˈθælmiə/

Eye inflammation caused by a foreign body (e.g., dust or a chemical).

Xenopsyllosis

zen-op-sih-LOH-sis

/ˌzɛnəpsɪˈloʊsɪs/

Infestation with fleas of the genus Xenopsylla, which can transmit the plague.

Xenopsyllosis

zen-op-sih-LOH-sis

/ˌzɛnəpsɪˈloʊsɪs/

The state of being infested with rat fleas (Xenopsylla cheopis).

Xenoreactive

zee-noh-ree-AK-tiv

/ˌzɛnoʊriˈæktɪv/

In immunology, describing an immune response directed against antigens from a different species.

Xenoreception

zee-noh-ree-SEP-shun

/ˌzɛnoʊrɪˈsɛpʃən/

The detection of chemical signals (pheromones/toxins) from a different species.

Xenoreceptor

zee-noh-ree-SEP-tor

/ˌzɛnoʊrɪˈsɛptər/

A receptor specialized for detecting foreign substances.

Xenotransplantation

zee-noh-trans-plan-TAY-shun

/ˌzɛnoʊˌtrænzplænˈteɪʃən/

The transplantation of living cells, tissues, or organs from one species to another (e.g., pig to human).

Xer-

ZEER

/zɪər/

A prefix meaning dry.

Xeransis

zeer-AN-sis

/zɪˈrænsɪs/

The process of drying up; desiccation of tissues.

Xerantic

zeer-AN-tik

/zɪˈræntɪk/

Having a drying effect; desiccating.

Xero-

ZEER-oh

/zɪəroʊ/

Prefix meaning dry.

Xerocheilia

/ˌzɪərəˈkaɪliə/

zeer-oh-KY-lee-ah

Medical term for excessive dryness of the lips.

Xerocheilia

zeer-oh-KY-lee-ah

/ˌzɪərəˈkaɪliə/

Dryness of the lips.

Xerochilia

zeer-oh-KY-lee-ah

/ˌzɪərəˈkaɪliə/

Dryness of the lips.

Xeroderma

zeer-oh-DER-mah

/ˌzɪərəˈdɜːrmə/

A condition characterized by abnormally dry skin.

Xeroderma pigmentosum

pig-men-TOH-sum

/ˌzɪərəˈdɜːrmə ˌpɪɡmɛnˈtoʊsəm/

A rare genetic disorder where the skin cannot repair damage from UV light, leading to high skin cancer risk.

Xeroderma pigmentosum

PIG-men-toh-sum

/ˌzɪərəˈdɜːrmə ˌpɪɡmɛnˈtoʊsəm/

A genetic disorder characterized by extreme sensitivity to UV rays and a high risk of skin cancer.

Xerodermosteosis

zeer-oh-der-mos-tee-OH-sis

/ˌzɪərəʊˌdɜːrmɒstiˈoʊsɪs/

A syndrome characterized by dry skin, bone deformities, and joint pain.

Xerography

zeer-OG-rah-fee

/zɪˈrɒɡrəfi/

A dry, photoelectric process for recording images, formerly used in mammography (xeromammography).

Xerography

zeer-OG-rah-fee

/zɪˈrɒɡrəfi/

A dry photoelectric process used for recording images (obsolete in medicine but historical in mammography).

Xeroma

zeer-OH-mah

/zɪˈroʊmə/

An old term for xerophthalmia or abnormal dryness of the eyes.

Xeroma

zeer-OH-mah

/zɪˈroʊmə/

Abnormal dryness of the conjunctiva (an old term for xerophthalmia).

Xeromammography

zeer-oh-mam-OG-rah-fee

/ˌzɪəroʊmæˈmɒɡrəfi/

A specialized xeroradiographic technique formerly used for imaging the breast.

Xeromenia

zeer-oh-MEE-nee-ah

/ˌzɪərəˈmiːniə/

A condition where menstrual symptoms occur without actual menstrual flow.

Xeromycteria

zeer-oh-mik-TEER-ee-ah

/ˌzɪərəʊmɪkˈtɪəriə/

Dryness of the nasal mucous membranes.

Xeromycteria

zeer-oh-mik-TEER-ee-ah

/ˌzɪərəʊmɪkˈtɪəriə/

Dryness of the nasal passages.

Xerophagia

zeer-oh-FAY-jah

/ˌzɪərəˈfeɪdʒə/

The consumption of exclusively dry foods.

Xerophagia

zeer-oh-FAY-jah

/ˌzɪərəˈfeɪdʒə/

The practice of eating only dry foods.

Xerophagia

zeer-oh-FAY-jah

/ˌzɪərəˈfeɪdʒə/

The act of eating dry food.

Xerophagy

zeer-OF-ah-jee

/zɪˈrɒfədʒi/

The eating of dry food; sometimes used in dietary therapy.

Xerophilic

zeer-oh-FIL-ik

/ˌzɪərəˈfɪlɪk/

Thriving in dry environments; used to describe certain fungi or bacteria.

Xerophilic

zeer-oh-FIL-ik

/ˌzɪərəˈfɪlɪk/

Thriving in dry environments (usually used for microbes).

Xerophthalmia

zeer-of-THAL-mee-ah

/ˌzɪərɒfˈθælmiə/

Dryness of the conjunctiva and cornea, often due to Vitamin A deficiency.

Xerophthalmos

zeer-of-THAL-mus

/ˌzɪərɒfˈθælməs/

Dryness of the eye (alternate spelling).

Xerophthalmus

zeer-of-THAL-mus

/ˌzɪərɒfˈθælməs/

An older term for xerophthalmia (dry eye).

Xeroradiography

zeer-oh-ray-dee-OG-rah-fee

/ˌzɪərəʊˌreɪdiˈɒɡrəfi/

A type of X-ray that produces a high-contrast image on paper rather than film.

Xeroradiography

zeer-oh-ray-dee-OG-rah-fee

/ˌzɪərəʊˌreɪdiˈɒɡrəfi/

A specialized X-ray technique that used selenium plates instead of film, once used for soft-tissue imaging.

Xeroradiography

zeer-oh-ray-dee-OG-rah-fee

/ˌzɪərəʊˌreɪdiˈɒɡrəfi/

A type of X-ray that used a dry process to create a high-contrast image on paper.

Xerosis

zeer-OH-sis

/zɪˈroʊsɪs/

Abnormal dryness of a part of the body, such as the skin or eyes.

Xerostomia

zeer-oh-STOH-mee-ah

/ˌzɪərəˈstoʊmiə/

Dry mouth caused by reduced or absent salivary flow.

Xerostomia

zeer-oh-STOH-mee-ah

/ˌzɪərəˈstoʊmiə/

A condition of dry mouth resulting from reduced or absent saliva.

Xerotic

zeer-OT-ik

/zɪˈrɒtɪk/

Affected with or characterized by xerosis (dryness).

Xiph-

ZIF

/zaɪf/

A prefix relating to the xiphoid process or meaning sword-shaped.

Xiphidiocercaria

zif-id-ee-oh-ser-KAIR-ee-ah

/zɪˌfɪdioʊsɜːrˈkɛəriə/

A type of parasitic fluke larva equipped with a boring spine (stylet).

Xiphisternum

zif-ih-STER-num

/ˌzaɪfɪˈstɜːrnəm/

The lowest part of the sternum; the xiphoid process.

Xiphocostal

zif-oh-KOS-tul

/ˌzaɪfəˈkɒstəl/

Relating to the xiphoid process and the ribs.

Xiphocostal

zif-oh-KOS-tul

/ˌzaɪfəˈkɒstəl/

Pertaining to the xiphoid process and the ribs.

Xiphodynia

zif-oh-DIN-ee-ah

/ˌzaɪfəˈdɪniə/

Pain in the xiphoid process.

Xiphodynia

zif-oh-DIN-ee-ah

/ˌzaɪfəˈdɪniə/

Pain in the xiphoid process (the lower tip of the breastbone).

Xiphoid

ZY-foyd

/ˈzaɪfɔɪd/

Sword-shaped; pertaining to the cartilage at the lower end of the sternum.

Xiphoid

ZY-foyd

/ˈzaɪfɔɪd/

Sword-shaped; relating specifically to the lowest portion of the sternum.

Xiphoid process

ZY-foyd PROH-ses

/ˈzaɪfɔɪd ˈprɒsɛs/

The small cartilaginous or bony extension at the lower end of the sternum.

Xiphoidalgia

zy-foy-DAL-jah

/ˌzaɪfɔɪˈdældʒə/

Pain in the sternum's lowest point.

Xiphoidalgia

zy-foy-DAL-jah

/ˌzaɪfɔɪˈdældʒə/

Hypersensitivity or pain in the xiphoid process.

Xiphoiditis

zy-foy-DY-tis

/ˌzaɪfɔɪˈdaɪtɪs/

Inflammation of the xiphoid process.

Xiphoiditis

zy-foy-DY-tis

/ˌzaɪfɔɪˈdaɪtɪs/

Inflammation of the xiphoid process.

Xiphopagus

zih-FOP-ah-gus

/zaɪˈfɒpəɡəs/

Conjoined twins united at the xiphoid process.

Xiphopagus

zih-FOP-ah-gus

/zaɪˈfɒpəɡəs/

Conjoined twins united by the xiphoid cartilage and the upper abdominal wall.

Xiphopubic

zif-oh-PYOO-bik

/ˌzaɪfəˈpjuːbɪk/

Relating to the xiphoid process and the pubic region.

Xiphopubic

zif-oh-PYOO-bik

/ˌzaɪfəˈpjuːbɪk/

Extending from the xiphoid process to the pubis.

Xiphopubic

zif-oh-PYOO-bik

/ˌzaɪfəˈpjuːbɪk/

Extending from the xiphoid process to the pubis.

Xiphosternum

zif-oh-STER-num

/ˌzaɪfəˈstɜːrnəm/

The xiphoid process of the sternum.

Xiphosternum

zif-oh-STER-num

/ˌzaɪfəˈstɜːrnəm/

The xiphoid process.

Xylane

ZY-layn

/ˈzaɪleɪn/

A complex carbohydrate (polysaccharide) found in the cell walls of plants.

Xylane

ZY-layn

/ˈzaɪleɪn/

A type of plant polysaccharide; studied in medical research regarding dietary fiber and gut health.

Xylene

ZY-leen

/ˈzaɪliːn/

A colorless liquid used as a solvent in medical laboratories for histology.

Xylidine

ZY-lih-deen

/ˈzaɪlɪdiːn/

A chemical derivative of xylene used in the manufacture of certain dyes and pharmaceuticals.

Xylidine

ZY-lih-deen

/ˈzaɪlɪdiːn/

Any of several isomeric compounds used as intermediates for chemical syntheses.

Xylitol

ZY-lih-tol

/ˈzaɪlɪtɒl/

A sugar alcohol used as a sweetener that has been shown to reduce dental cavities.

Xylitol

ZY-lih-tol

/ˈzaɪlɪtɒl/

A naturally occurring five-carbon sugar alcohol used as a sweetener and for its dental-protective properties.

Xylo-oligosaccharide

ol-ih-goh-SAK-ah-ryd

/ˌzaɪloʊˌɒlɪɡoʊˈsækəraɪd/

Functional polymers often used as prebiotics to improve intestinal flora.

Xylocaine

ZY-loh-kayn

/ˈzaɪləkeɪn/

A brand name for lidocaine, a common local anesthetic.

Xyloketose

zy-loh-KEE-tohs

/ˌzaɪloʊˈkiːtoʊs/

An older term for xylulose, a pentose sugar found in the urine in essential pentosuria.

Xylol

ZY-lol

/ˈzaɪlɒl/

Another name for xylene.

Xyloma

zy-LOH-mah

/zaɪˈloʊmə/

A woody tumor or growth, typically on a plant, but used metaphorically in older pathology to describe hard, fibrous masses.

Xylophobia

zy-loh-FOH-bee-ah

/ˌzaɪləˈfoʊbiə/

An irrational fear of wooden objects or forests.

Xyloscopic

zy-loh-SKOP-ik

/ˌzaɪləˈskɒpɪk/

Relating to the examination of wood or woody tissue under a microscope.

Xylose

ZY-lohs

/ˈzaɪloʊs/

A wood sugar; the D-xylose absorption test is used to diagnose malabsorption in the intestines.

Xylose

ZY-lohs

/ˈzaɪloʊs/

A type of sugar used in clinical tests to evaluate intestinal absorption.

Xylose absorption test

ab-SORP-shun

/ˈzaɪloʊs əbˈzɔːrpʃən tɛst/

A medical test that measures the ability of the small intestine to absorb xylose to diagnose malabsorption.

Xylose absorption test

ab-SORP-shun

/ˈzaɪloʊs əbˈzɔːrpʃən tɛst/

A test used to determine if the small intestine is absorbing nutrients properly.

Xylose isomerase

eye-SOM-er-ays

/ˈzaɪloʊs aɪˈsɒməreɪs/

An enzyme used in biochemical research to convert xylose into xylulose.

Xylosuria

zy-loh-SOO-ree-ah

/ˌzaɪləˈsjʊəriə/

The excretion of xylose in the urine.

Xylotherapy

zy-loh-THAIR-ah-pee

/ˌzaɪləˈθɛrəpi/

A historical term for medical treatment using certain types of wood or wood extracts.

Xylulose

ZY-lyoo-lohs

/ˈzaɪljʊloʊs/

A sugar involved in the pentose phosphate pathway; its presence in urine indicates a rare metabolic condition called pentosuria.

Xylulose

ZY-lyoo-lohs

/ˈzaɪljʊloʊs/

A pentose sugar that accumulates in the urine of people with the metabolic condition pentosuria.

Xyrospasm

ZY-roh-spaz-um

/ˈzaɪroʊspæzəm/

Muscular spasm of the hands, historically associated with barbers (barber's cramp).

Xyrospasm

ZY-roh-spaz-um

/ˈzaɪroʊspæzəm/

Occupational cramp affecting barbers or those who use razors frequently.