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jaw-winking syndrome in Medicine

jaw-winking syndrome

n.
  1. An increase in the width of the eyelids that occurs during chewing, sometimes accompanied by a rhythmic raising of the upper lid when the mouth is open and its subsequent drooping when the mouth is closed.Marcus Gunn phenomenon
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.