hippus

hippus definition - medical

hip·pus (hĭpˈəs)

noun
Spasmodic, rhythmical dilation and constriction of the pupil, independent of illumination, convergence, or psychic stimuli.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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