nictitating membrane

N n

Definitions of nictitating membrane words

noun nictitating membrane a thin membrane, or inner or third eyelid, present in many animals, capable of being drawn across the eyeball, as for protection. 1
noun nictitating membrane (in reptiles, birds, and some mammals) a thin fold of skin beneath the eyelid that can be drawn across the eye 0
noun 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 0

before 1705

One of the 50% oldest English words

1705-15; nictate + -ing2

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adjective

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preposition

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exclamation

This term is known only to a narrow circle of people with rare knowledge. Only 27% of English native speakers know the meaning of this word.

According to our data most of word are more popular. This word is almost not used. It has a much more popular synonym.

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