“the dilation of the pupil of the eye”
- Synonyms:
- dilatation
- Types:
-
vasodilation
dilation of blood vessels (especially the arteries)
-
mydriasis
reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs
- Type of:
-
enlargement, expansion
the act of increasing (something) in size or volume or quantity or scope