Vi fant 1 definisjoner av third eyelid på engelsk.
Noun |
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| third eyelid - a protective fold of skin in the eyes of reptiles and birds and some mammals | ||
| nictitating membrane | ||
| 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" | ||