Found 2 items, similar to mydriasis.
English → English (WordNet) Definition: mydriasis mydriasis n : reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
English → English (gcide) Definition: Mydriasis 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]