hippus

noun
hip·​pus | \ ˈhip-əs How to pronounce hippus (audio) \

Medical Definition of hippus

: a spasmodic variation in the size of the pupil of the eye caused by a tremor of the iris

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Cite this Entry

“Hippus.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/hippus. Accessed 15 Jan. 2021.

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