eyelid(redirected from eyelid abnormality)
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1. either of the two muscular folds of skin that can be moved to cover the exposed portion of the eyeball
2. Aeronautics a set of movable parts at the rear of a jet engine that redirect the exhaust flow to assist braking during landing
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
A movable, protective section of skin that covers and uncovers the eyeball of many terrestrial animals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.