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Definition of Nictitating Membrane in English :

Define Nictitating Membrane in English

Nictitating Membrane meaning in English

Meaning of Nictitating Membrane in English

Pronunciation of Nictitating Membrane in English

Nictitating Membrane pronunciation in English

Pronounce Nictitating Membrane in English

Nictitating Membrane

see synonyms of nictitating membrane

Noun

1. nictitating membrane, third eyelid

a protective fold of skin in the eyes of reptiles and birds and some mammals

WordNet Lexical Database for English. Princeton University. 2010.

Nictitating Membrane

see synonyms of nictitating membrane
noun
(in reptiles, birds, and some mammals) a thin fold of skin beneath the eyelid that can be drawn across the eye
. Also called: third eyelid, haw

Collins English Dictionary. Copyright © HarperCollins Publishers

Nictitating Membrane

see synonyms of nictitating membrane
a transparent third eyelid hinged at the inner side or lower lid of the eye of various animals, serving to keep the eye clean and moist: it is vestigial in humans

Webster’s New World College Dictionary, 4th Edition. Copyright © 2010 by Houghton Mifflin Harcourt. All rights reserved.

Nictitating Membrane

see synonyms of nictitating membrane
n.
A transparent inner eyelid in many vertebrates that closes to protect and moisten the eye. Also called third eyelid.

The American Heritage ® Dictionary of the English Language, Fifth Edition copyright ©2018 by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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