third eyelid
Americannoun
noun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The surgery was complicated by the unique characteristics of penguins, such as a third eyelid, which protects their eyes underwater but had a tendency to close during the surgery.
From BBC ● Mar. 17, 2023
His daughter searched for information online and learned about a membrane, or third eyelid, that protects the birds’ peepers in-flight and on fishing expeditions.
From Washington Post ● Jul. 1, 2022
A third eyelid, between the regular eyelids and the cornea, protects the globe and also has a gland at the bottom that produces extra tears.
From New York Times ● Jun. 2, 2014
We have, for example, in the inner corner of the eye a relic of that third eyelid whereby the eagle is enabled to look at the sun.
From The Book of Life by Sinclair, Upton
Thus, man has still the rudiment of the third eyelid of his shark-ancestor.
From The World's Greatest Books — Volume 15 — Science by Hammerton, John Alexander, Sir
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
