nictitate

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.

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

Haw, haw, n. the nictitating membrane or third eyelid, as of a horse; also a disease of this membrane.

From Project Gutenberg

Another typical vestigial structure is the plica semi-lunaris, the remnant of the nictitating membrane characteristic of nearly the whole vertebrate sub-kingdom.

From Project Gutenberg