blink

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blink

(blink),
To close and open the eyelids rapidly; an involuntary act by which the tears are spread over the conjunctiva, keeping it moist.
Synonym(s): wink

blink

(blingk)
To close and open the eyes rapidly; an involuntary act by which the tears are spread over the cornea and conjunctiva, keeping it moist.

blink 

A temporary closure of the eyelids (usually of both eyes). Blinks are usually involuntary but may be voluntary. The frequency of blinking is conditioned by a number of external and internal factors, e.g. glare, wind, emotion, attention, tiredness, etc. Normal blink rate is about 10 blinks per minute, although there are wide variations. The duration of a full blink is approximately 0.3-0.4 s. Blink rates are often altered with contact lens wear and in some diseased states (e.g. chalazion, Graves' disease). See corneal reflex; wink.

blink

the involuntary movement of one or both eyelids of both eyes simultaneously. The frequency varies between species. Cats blink the least, with the possible exception of owls. In birds it is the lower eyelid which is moved up to meet the upper lid. In mammals the upper eyelid is moved down to meet the lower lid. The blink is a part of several reflexes including the palpebral, conjunctival and menace reflexes.

blink reflex
see blink response.
blink response
absent in lesions of the ophthalmic branch of the trigeminal nerve. Called also blink reflex.
References in periodicals archive ?
But the 46-year-old actor, who denies the allegations and is fighting to clear his name, was soon blinking back tears after the warm welcome back by cast mates and crew, who told him: "We're with you, mate.
When victory was complete she collapsed to the track and for long minute after long minute she sucked in oxygen, blinking back the tears, unaware of her opponents and oblivious it seemed to the euphoria all around.
BLINKING back tears, a worker told a manslaughter jury of the moment Maurice Agis's Dreamspace artwork swept two women to their deaths.
Blinking back tears, bride-to-be Carol Hyde today relived the moment she lost her fiance.
Sharon and Matt left together and Sharon was driving, though sometimes Matt drives,'' Bjornstad said, blinking back tears.
That's when my heart snaps in two and I'm blinking back my tears trying not to look like a total fruit cake of a mother who's about to lose the plot.
I wanted blonder, thicker, neater and just more, more, more of what I didn't have and 20 minutes later I was blinking back incredulity and shaking a glistening head of lovely thick hair.
It was different,'' said senior Bijen Monte, 17, blinking back tears.
The folk revival rediscovers the singers of the Twenties, bringing them blinking back on stage after a generation of obscurity.
When UCLA and USC meet on the football field, you never can be sure who'll wind up blinking in the spotlight's glare and who'll merely be blinking back tears.
He was blinking back questions, using the quizzical smile he saves up for feigning surprise.
Dressed in a black T-shirt and blinking back tears, Margaret said: 'Please don't bring the troops to Baghdad.