[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.

1650–60; < Latin mydriāsis < Greek mydríāsis Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source Link To mydriasis
World English Dictionary
mydriasis (mɪˈdraɪəsɪs, maɪ-)
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
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
Cite This Source
American Heritage
Medical Dictionary

mydriasis my·dri·a·sis (mĭ-drī'ə-sĭs)
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.
Cite This Source
Related Words
Copyright © 2014, LLC. All rights reserved.
  • Please Login or Sign Up to use the Recent Searches feature