nictitating membrane
短语n. （某些动物的）瞬膜; 第三眼睑
词形变化
nictitating membranes
复数
nictitating membranes
别名
nictating membrane
释义与例句
n.
-
1.
A transparent protective fold of skin acting as an inner eyelid in birds, reptiles and some mammals.
瞬膜
As the wildebeest shrinks, the circle of sated birds lounging in the short grass expands. With bulging crops, the vultures settle their heads atop folded wings and slide their nictitating membranes shut.