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miosis
or my·o·sis
[ 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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Compare mydriasis.
Origin of miosis
Words nearby miosis
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
British Dictionary definitions for miosis
miosis
myosis
/ (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 miosis
miotic or myotic (maɪˈɒtɪk), adjective, nounWord 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
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.