# miosis

> English word · Noun · IPA /maɪˈoʊsɪs/

## Definitions
1. Contraction of the pupil of the eye.

## Etymology
From Ancient Greek μύω (múō, “to close the eyes”) + -osis.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/miosis