Third Eyelid (Noun)
Meaning
A protective fold of skin in the eyes of reptiles and birds and some mammals.
Classification
Nouns denoting body parts.
Examples
- Many birds have a third eyelid, also known as the nictitating membrane, which provides protection for their eyes while still allowing them to see.
- The third eyelid of a reptile plays a crucial role in its eye's protection and lubrication, especially in dry environments.
- Some mammals, such as cats and dogs, possess a small third eyelid that aids in protecting their eyes from foreign particles and dust.
- The third eyelid of birds and reptiles serves as an additional layer of protection from debris and provides aid in eye movements.
- During hunting, birds of prey rapidly move their third eyelids over their eyes for extended protection while maintaining clear vision to pursue prey.