[ mahy-oh-sis ]
/ maɪˈoʊ sɪs /
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noun, plural mi·o·ses [mahy-oh-seez]. /maɪˈoʊ siz/. Medicine/Medical.
excessive constriction of the pupil of the eye, as a result of drugs, disease, or the like.
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Let’s start with some etymology: What are the origins of the typographical word “bracket”?
First appeared around 1750, and is related to the French word “braguette” for the name of codpiece armor.
First appeared in 1610, based on the French word “baguette” for the long loaf of bread.
First appeared in 1555, and is related to the French word “raquette” for a netted bat.TAKE THE QUIZ TO FIND OUT
Origin of miosis
1810–20; variant of myosis<Greek mý(ein) to shut (the eyes) + -ōsis-osis
Words nearby miosis
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
British Dictionary definitions for miosis
/ (maɪˈəʊsɪs) /
noun plural -ses (-siːz)
excessive contraction of the pupil of the eye, as in response to drugs
a variant spelling of meiosis (def. 1)
Derived forms of miosismiotic or myotic (maɪˈɒtɪk), adjective, noun
Word Origin for miosis
C20: from Greek muein to shut the eyes + -osis
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for miosis
n. pl. mi•o••ses (-sēz)
The period of decline of a disease in which the intensity of the symptoms begins to diminish.
Constriction of the pupil of the eye, resulting from a normal response to an increase in light or caused by certain drugs or pathological conditions.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.