mydriasis

[mi-drahy-uh-sis, mahy-]

my·dri·a·sis

[mi-drahy-uh-sis, mahy-]
noun Medicine/Medical.
excessive dilatation of the pupil of the eye, as the result of disease, drugs, or the like.
Compare miosis.


Origin:
1650–60; < Latin mydriāsis < Greek mydríāsis
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2012.
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Mydriasis is always a great word to know.
So is nares. Does it mean:
the bone of the lower jaw.
the nostrils or the nasal passages.
Collins
World English Dictionary
mydriasis (mɪˈdraɪəsɪs, maɪ-)
 
n
abnormal dilation of the pupil of the eye, produced by drugs, coma, etc
 
[C17: via Late Latin from Greek; origin obscure]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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American Heritage
Medical Dictionary

mydriasis my·dri·a·sis (mĭ-drī'ə-sĭs)
n.
Prolonged abnormal dilation of the pupil of the eye induced by a drug or caused by disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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