'Mydriasis' definitions:
Definition of 'mydriasis'
(from WordNet)
noun
Reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
Definition of 'Mydriasis'
From: GCIDE
- Mydriasis \My*dri"a*sis\, n. [L., fr. Gr. ?.] (Physiol. & Med.) A long-continued or excessive dilatation of the pupil of the eye. [1913 Webster]