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eyelid

[ahy-lid] /ˈaɪˌlɪd/
noun
1.
the movable lid of skin that serves to cover and uncover the eyeball.
Origin
1200-1250
1200-50; Middle English; see eye, lid
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for eyelid
  • Sometimes his eyelid is too weak to make the selections.
  • One side of her face eyelid and mouth, was pulled sharply down.
  • The shuttered eyelid gracing the cover of this slim book invites readers to enter a silent realm.
  • Finally it pierces the orbital septum, and ends in the skin of the upper eyelid, joining with filaments of the facial nerve.
  • To ensure that eyes remain closed, she was taught to place tiny pieces of cotton on the eye and then draw the eyelid down over it.
  • And diamond-shaped eyes, which caused all sorts of eyelid troubles, are no longer demanded.
  • Cavernous hemangiomas that involve the eyelid and block vision are generally treated with steroid injections or laser treatments.
  • Sometimes, a suspected allergen is dissolved and dropped into the lower eyelid to check for an allergic reaction.
  • The surgery may be done alone or with other procedures such as a facelift, eyelid surgery, or nose reshaping.
  • Then apply a slightly deeper shade of the same color to the lower part of the eyelid, and draw it out to the corner.
British Dictionary definitions for eyelid

eyelid

/ˈaɪˌlɪd/
noun
1.
either of the two muscular folds of skin that can be moved to cover the exposed portion of the eyeball related adjective palpebral
2.
(aeronautics) Also called clamshell. a set of movable parts at the rear of a jet engine that redirect the exhaust flow to assist braking during landing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word Origin and History for eyelid
n.

mid-13c., from eye (n.) + lid (n.).

Online Etymology Dictionary, © 2010 Douglas Harper
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eyelid in Medicine

eyelid eye·lid or eye-lid (ī'lĭd')
n.
Either of two folds of skin and muscle that can be closed over the exposed portion of the eyeball. Also called palpebra.

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

movable tissue, consisting primarily of skin and muscle, that shields and protects the eyeball from mechanical injury and helps to provide the moist chamber essential for the normal functioning of the conjunctiva and cornea. The conjunctiva is the mucous membrane that lines the eyelid and covers the visible portion of the eyeball except the cornea (the transparent part of the eyeball that covers the iris and the pupil). Each eyelid contains a fibrous plate, called a tarsus, that gives it structure and shape; muscles, which move the eyelids; and meibomian (or tarsal) glands, which secrete lubricating fluids. The lids are covered with skin, lined with mucous membrane, and bordered with a fringe of hairs, the eyelashes. The lids move through the action of a circular lid-closing muscle, the orbicularis oculi, and of the lid-raising muscle, the levator of the upper lid. Impulses for closing come by way of the facial (seventh cranial) nerve, and for opening by way of the oculomotor (third cranial) nerve. The lid borders are kept lubricated by an oily secretion (called sebum) of the meibomian glands. This secretion forms part of the tear film and reduces evaporative tear loss.

Learn more about eyelid with a free trial on Britannica.com
Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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