nictitating membrane
参考词典中nictitating membrane的常规释义：
基本释义
- 瞬膜
英英解释
1个名词解释
- a protective fold of skin in the eyes of reptiles and birds and some mammals
[同] nictitating membrane, third eyelid
点击查看……- a protective fold of skin in the eyes of reptiles and birds and some mammals
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