Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun mydriasis

1 sense of mydriasis

Sense 1
mydriasis -- (reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs)
       => reflex, reflex response, reflex action, instinctive reflex, innate reflex, inborn reflex, unconditioned reflex, physiological reaction -- (an automatic instinctive unlearned reaction to a stimulus)
       => dilation, dilatation -- (the act of expanding an aperture; "the dilation of the pupil of the eye")