miosis

noun
mi·​o·​sis | \ mī-ˈō-səs How to pronounce miosis (audio) , mē- \
variants: or less commonly
plural mioses also myoses\ mī-​ˈō-​ˌsēz How to pronounce myoses (audio) \

Definition of miosis

: excessive smallness or contraction of the pupil of the eye

First Known Use of miosis

1807, in the meaning defined above

History and Etymology for miosis

New Latin, from Greek myein to be closed (of the eyes) + New Latin -osis

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Time Traveler for miosis

Time Traveler

The first known use of miosis was in 1807

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Cite this Entry

“Miosis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/miosis. Accessed 19 Sep. 2020.

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More Definitions for miosis

miosis

noun
mi·​o·​sis
variants: also myosis \ mī-​ˈō-​səs How to pronounce myosis (audio) , mē-​ How to pronounce myosis (audio) \
plural mioses also myoses\ -​ˌsēz How to pronounce myoses (audio) \

Medical Definition of miosis

: excessive smallness or contraction of the pupil of the eye

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