myosis

my·o·sis  (m-ss)

n.

Variant of miosis.

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miosis, myosis

abnormal constriction of the pupil of the eye, caused by drugs or illness. Cf. mydriasis. — miotic, myotic, adj.

See also: Eyes

Thesaurus

Noun	1.	myosis - an acute infectious disease occurring in epidemic form and featuring paroxysms of pain (usually in the chest) Bornholm disease, diaphragmatic pleurisy, epidemic myalgia, epidemic pleurodynia epidemic disease - any infectious disease that develops and spreads rapidly to many people
	2.	myosis - reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller light reflex, pupillary reflex, miosis inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex - an automatic instinctive unlearned reaction to a stimulus