Definition of hippus in English:

hippus

noun

Medicine
  • [mass noun] Spasmodic or rhythmic contraction of the pupil of the eye, a symptom of some neurological conditions.

    • ‘Even a pronounced hippus may be physiological and does not necessarily require extensive diagnostic investigations.’
    tightening, tensing, flexing, constricting
    View synonyms

Origin

Late 17th century: modern Latin, from Greek hippos tremor of the eyes.

Pronunciation

hippus

/ˈhɪpəs/