miosis

or my·o·sis

[ mahy-oh-sis ]

noun

, Medicine/Medical.

, plural mi·o·ses [mahy-, oh, -seez].

1. excessive constriction of the pupil of the eye, as a result of drugs, disease, or the like.

miosis

/ maɪˈəʊsɪs; maɪˈɒtɪk /

noun

1. excessive contraction of the pupil of the eye, as in response to drugs
2. a variant spelling of meiosis

Derived Forms

• miotic, adjectivenoun

Word History and Origins

Origin of miosis¹

1810–20; variant of myosis < Greek mý ( ein ) to shut (the eyes) + -ōsis -osis

Word History and Origins

Origin of miosis¹

C20: from Greek muein to shut the eyes + -osis

Example Sentences

One doctor working from the Daraya medical center said 75 victims were treated for symptoms including “muscle spasms, bronchial spasms, headaches, dizziness, vomiting, and miosis” following a 1 a.m. rocket strike.

From Newsweek