nictitating membrane 名詞
瞬膜
Nic·ti·tate v. i. To wink; to nictate.
Nictitating membrane Anat., a thin membrane, 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.
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Har·de·ri·an a. Anat. A term applied to a lachrymal gland on the inner side of the orbit of many animals which have a third eyelid, or nictitating membrane. See Nictitating membrane, under Nictitate.
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Haw, n. Anat. The third eyelid, or nictitating membrane. See Nictitating membrane, under Nictitate.
nictitating membrane
n : a protective fold of skin in the eyes of reptiles and birds
and some mammals [syn: third eyelid]