Definition of Nictitating. Meaning of Nictitating. Synonyms of Nictitating

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Definition of Nictitating

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Nictitating membrance
Nictitate Nic"ti*tate, v. i. [See Nictate.] To wink; to nictate. Nictitating membrance (Anat.), a thin membrance, found in many animals at the inner angle, or beneath the lower lid, of the eye, and capable of being drawn across the eyeball; the third eyelid; the haw.

Meaning of Nictitating from wikipedia

- seals and aardvarks) have full nictitating membranes; in many other mammals, a small, vestigial portion of the nictitating membrane remains in the corner...
- have a full translucent third eyelid called a nictitating membrane, while others have a vestigial nictitating membrane. The membrane works to protect and...
- Instead the eye is lubricated by the nictitating membrane, a third eyelid that moves horizontally. The nictitating membrane also covers the eye and acts...
- levels rather than representing true trichromatic vision. Cats have a nictitating membrane, allowing them to blink without hindering their vision. The...
- protrude from the water. Each eye has closable upper and lower lids and a nictitating membrane which provides further protection, especially when the frog...
- luxating patella, hip dysplasia, and Legg-Calvé-Perthes disease. Prolapsed nictitating membrane gland is also common in puggles despite not being prevalent...
- the eyeball, restricting movement. It is the vestigial remnant of the nictitating membrane (the "third eyelid") which is drawn across the eye for protection...
- sharks. Members of this order are characterized by the presence of a nictitating membrane over the eye, two dorsal fins, an anal fin, and five gill slits...
- fishes, generally characterized by lacking traits such as an anal fin, nictitating membrane, or suborbital shelves in the cranium. Squalomorphii sharks...
- especially in animals without eyelids. In squamate reptiles both the nictitating membrane and the eyelids have been suggested as the evolutionary origin...