MedTerm Speak

Master the language of medicine

Ocular

OK-yuh-lur

/ˈɒkjʊlər/

Relating to the eye.

Off-label

off-LAY-bul

/ɒfˈleɪbəl/

Drug use for unapproved indications.

Ointment

OYNT-munt

/ˈɔɪntmənt/

Oily preparation rubbed on skin.

Oliguria

ol-ih-GYOO-ree-uh

/ˌɒlɪˈɡjʊəriə/

Small amounts of urine production.

Oncology

on-KOL-uh-jee

/ɒŋˈkɒlədʒi/

Study and treatment of cancer.

Onset of action

ON-set uv AK-shun

/ˈɒnsɛt əv ˈækʃən/

Time for drug effects to start.

Ophthalmic

off-THAL-mik

/ɒfˈθælmɪk/

Relating to eye drops/diseases.

Opioid

OH-pee-oyd

/ˈoʊpioɪd/

Compound resembling opium properties.

Opportunistic infection

op-ur-too-NIS-tik in-FEK-shun

/ˌɒpərtjuːˈnɪstɪk ɪnˈfɛkʃən/

Infection in immune-weakened host.

Optimum

OP-tih-mum

/ˈɒptɪməm/

Most favorable level for therapy.

Oral

OR-ul

/ˈɔːrəl/

Administration by mouth.

Orphan drug

OR-fun drug

/ˈɔːrfən drʌɡ/

Drug for rare medical conditions.

Orthostatic hypotension

or-thuh-STAT-ik hy-poh-TEN-shun

/ˌɔːrθəˈstætɪk ˌhaɪpoʊˈtɛnʃən/

BP drop upon standing up.

Osmosis

oz-MOH-sis

/ɒzˈmoʊsɪs/

Solvent passage through semipermeable membrane.

Ototoxicity

oh-toh-tok-SIS-ih-tee

/ˌoʊtoʊtɒkˈsɪsɪti/

Toxicity to the ear/auditory nerve.

Over-the-counter

OH-vur-thuh-KOWN-tur

/ˌoʊvərðəˈkaʊntər/

Medicines sold without prescription.

Oxidation

ok-sih-DAY-shun

/ˌɒksɪˈdeɪʃən/

Loss of electrons in drug metabolism.