Definitions

1. verb

to blink slowly; to wink or flash one’s eyes, often in a threatening or challenging manner.

“The boxer’s opponent tried to intimidate him by nictitating slowly.”

2. verb

to move the eyelids quickly, as in blinking.

“The child learned to nictitate quickly to avoid getting dust in her eyes.”

3. verb

to twinkle or flash, often in the eyes.

“The celebrity’s eyes nictitated as she accepted her award.”