minute, moment, second, bit - an indefinitely short time; "wait just a moment"; "it only takes a minute"; "in just a bit"

facial expression, facial gesture - a gesture executed with the facial muscles

inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, unconditioned reflex - an automatic instinctive unlearned reaction to a stimulus

palpebration - repeated blinking or winking (especially if uncontrolled and persistent)

gesticulate, gesture, motion - show, express or direct through movement; "He gestured his desire to leave"

flick, flicker - flash intermittently; "The lights flicked on and off"

radiate - cause to be seen by emitting light as if in rays; "The sun is radiating"

palpebrate - wink or blink, especially repeatedly

bat, flutter - wink briefly; "bat one's eyelids"

act involuntarily, act reflexively - act in an uncontrolled manner

conquer, inhibit, stamp down, suppress, subdue, curb - to put down by force or authority; "suppress a nascent uprising"; "stamp down on littering"; "conquer one's desires"