Assertion: eyelid | /r/Synonym | nictitating membrane
Facets:
Source sentences:
text: Many terrestrial vertebrates have an eyelid known as a nictitating membrane, or haw.
text: Many terrestrial vertebrates have an eyelid known as a nictitating membrane, or haw.
text: Many terrestrial vertebrates have an eyelid known as a nictitating membrane, or haw.
text: Many terrestrial vertebrates have an eyelid known as a nictitating membrane, or haw.