Definition of nictitating membrane Nictitating membrane
nic•ti•tat•ing mem•brane
We found 2 definitions of nictitating membrane from 2 different sources.
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What does nictitating membrane mean?
WordNet
Noun |
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| nictitating membrane - a protective fold of skin in the eyes of reptiles and birds and some mammals | ||
| third eyelid | ||
| protective fold a flap of tissue that protects what it covers | ||
| oculus, optic, eye a small hole or loop (as in a needle); "the thread wouldn't go through the eye" | ||
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Wiktionary 
- nictitating membrane (Noun)
A transparent protective fold of skin acting as an inner eyelid in birds, reptiles and some mammals.
