| Pronunciation: | | mi'drIusis
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 WordNet Dictionary |
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| | Definition: | |
[n] reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs |
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MYDRIASIS is a 9 letter word that starts with M. |
| | See Also: | | dilatation, dilation, inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, unconditioned reflex |
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| Webster's 1913 Dictionary |
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| | Definition: | | \My*dri"a*sis\, n. [L., fr. Gr. ?.] (Physiol. & Med.)
A long-continued or excessive dilatation of the pupil of the
eye.
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| Medical Dictionary |
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| | Definition: | | dilation of the pupil. |
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| Biology Dictionary |
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| | Definition: | | Mydriasis is the abnormal dilation of the pupils of the eye; it is a clinical sign associated with many conditions including hyperthyroidism. |
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