Meaning of MYOSIS
| Pronunciation: | | mI'owsis
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 WordNet Dictionary |
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| | Definition: | |
- [n] reflex contraction of the sphincter muscle of the iris in response to a bright light (or certain drugs) causing the pupil to become smaller
- [n] an acute infectious disease occurring in epidemic form and featuring paroxysms of pain (usually in the chest)
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| | Synonyms: | | Bornholm disease, diaphragmatic pleurisy, epidemic myalgia, epidemic pleurodynia, light reflex, miosis, pupillary reflex |
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| | See Also: | | epidemic disease, inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, unconditioned reflex | |
| Webster's 1913 Dictionary |
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| | Definition: | | \My*o"sis\, n. [NL., fr. Gr. ? to close the eyes or
lips.] (Med.)
Long-continued contraction of the pupil of the eye.
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