vi. 眨眼

[医] 瞬眼

[ verb ]
briefly shut the eyes
<verb.body> blink nictate wink
The TV announcer never seems to blink

Nictitate \Nic"ti*tate\, v. i. [See {Nictate}.]
To wink; to nictate.

{Nictitating membrane} (Anat.), a thin membrane, found in
many animals at the inner angle, or beneath the lower lid,
of the eye, and capable of being drawn across the eyeball;
the third eyelid; the haw.