HyperDic: third_eyelid

English > 1 sense of the expression third eyelid:
NOUNbodythird eyelid, nictitating membranea protective fold of skin in the eyes of reptiles and birds and some mammals
English > third eyelid: 1 sense > noun 1, body
MeaningA protective fold of skin in the eyes of reptiles and birds and some mammals.
Synonymnictitating membrane
Part ofeye, oculus, opticThe organ of sight
NarrowerhawThe nictitating membrane of a horse
Broaderprotective foldA flap of tissue that protects what it covers
Spanishmembrana nictitante
Catalanmembrana nictitant

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