nictitate

Example Sentences

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Separately, the sclera, the eye’s outer layer, would most closely resemble those of horses and cows and include a nictitating membrane, the built-in goggles that make it possible to see underwater.

From New York Times

In her 2018 special “Elder Millennial,” she references a nictitating membrane, the translucent inner eyelid typically found in reptiles and birds.

From Los Angeles Times

A thin nictitating membrane covers their eyes to protect against sandstorms, and bushy eyebrows and a double row of extra-long lashes help to keep sand out.

From National Geographic

A cat has upper and lower eyelids that meet when the eye closes, along with a mysterious third eyelid—more properly called the palpebra tertia, also known as the nictitating membrane or “haw.”

From Scientific American

The eye is provided with a nictitating membrane or third eyelid, at the base of which open the ducts of the Harderian gland.

From Project Gutenberg