| 单词 | third eyelid |
| 释义 | > as lemmasthird eyelid third eyelid n. the nictitating membrane of many animals. ΘΚΠ the world > animals > animal body > general parts > head and neck > [noun] > third or inner eyelid haw?1523 nictating membrane1678 nictitating membrane1713 third eyelid1822 1822 J. M. Good Study Med. III. 19 In the elephant, oppossum, seal, cat kind, and various other mammals, all birds, and all fishes we find a third eye-lid, or nictitating membrane as it is usually called. 1892 C. S. Minot Human Embryol. (1897) xxviii. 727 The third eyelid is well developed in birds, etc., but is rudimentary in man. 1983 Sci. Amer. Apr. 86/2 When a cat falls asleep..its eyes close, and the nictitating membrane (the ‘third eyelid’) covers part of the eye under the outer eyelids. < as lemmas |
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