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noun
Reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs.
is a specific kind of: dilatation, dilation | inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex.
Dutch: mydriasis
Find more on mydriasis elsewhere: etymology - rhymes - Wikipedia.
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