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[hip-uh s] /ˈhɪp əs/
noun, Medicine/Medical
spasmodic contraction of the pupil of the eye.
Origin of hippus
1675-85; < New Latin < Greek híppos horse, complaint of the eye


variant of hippo- as final element of compounds:
< Latin < Greek -hippos Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the Web for hippus
Historical Examples
  • He opened the door, and Mr. hippus slipped in like a frightened bat.

    Debit and Credit Gustav Freytag
  • When Veitel had placed his meal before him, hippus briefly inquired, "How much?"

    Debit and Credit Gustav Freytag
  • "You are drunk again, hippus," answered Veitel, thoroughly roused.

    Debit and Credit Gustav Freytag
  • Here hippus tried to whistle a tune, and to execute a few steps.

    Debit and Credit Gustav Freytag
  • He did many small kindnesses on his side, and made hippus the confidant of all his own transactions.

    Debit and Credit Gustav Freytag
  • A week after the death of hippus, Anton was sitting in his own room, writing to Fink.

    Debit and Credit Gustav Freytag
  • The door opened, and hippus appeared, red-faced and much ruffled.

    Debit and Credit Gustav Freytag
  • hippus, the Tyrian, is said to have first devised caracks, and onerary vessels of prodigious bulk for traffic or offence.

    The Sailor's Word-Book William Henry Smyth
  • No one had seen him go in with hippus, no one had recognized him as he went out.

    Debit and Credit Gustav Freytag
  • Mr. hippus took the heavy deed under his arm and steered toward the door.

    Debit and Credit Gustav Freytag
hippus in Medicine

hippus hip·pus (hĭp'əs)
Spasmodic, rhythmical dilation and constriction of the pupil, independent of illumination, convergence, or psychic stimuli.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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