nictitating membrane

noun

Definition of nictitating membrane

: a thin membrane found in many vertebrates at the inner angle or beneath the lower lid of the eye and capable of extending across the eyeball

Keep scrolling for more

Learn More about nictitating membrane

Dictionary Entries near nictitating membrane

nictitating membrane

nictitating spasm

Statistics for nictitating membrane

Look-up Popularity

Time Traveler for nictitating membrane

The first known use of nictitating membrane was in 1713

See more words from the same year

Keep scrolling for more

More Definitions for nictitating membrane

nictitating membrane

noun

Medical Definition of nictitating membrane

: a thin membrane found in many vertebrate animals at the inner angle or beneath the lower lid of the eye and capable of extending across the eyeball

— called also membrana nictitans, third eyelid

Comments on nictitating membrane

What made you want to look up nictitating membrane? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

nomothetic

involving abstract or general statements

Test Your Vocabulary

Liar, Liar Quiz

Someone who pretends to be sick in order to avoid work is a:

How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Words at Play

Ask the Editors

Word Games