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 classic literature ?
He paused with an unpleasing smile; and Father Brown blinked repeatedly at him, and seemed suddenly to be listening with great attention.
He was very gray and wrinkled, and not far from his sixtieth year, his eyes blinked, his eyebrows were white, his lip pendulous, and his hands large.
Then he reflected, blinked his eyes, stared at his guest once more from head to foot; then abruptly motioned him to a chair, sat down himself, and waited with some impatience for the prince to speak.
Then all shouted with laughter as they saw the good brown ale stream over Little John's beard and trickle from his nose and chin, while his eyes blinked with the smart of it.
He blinked his eyes, stared again, and they had vanished.
His thought was so absorbing that when it became necessary to verify the name of a street, he looked at it for a time before he read it; when he came to a crossing, he seemed to have to reassure himself by two or three taps, such as a blind man gives, upon the curb; and, reaching the Underground station, he blinked in the bright circle of light, glanced at his watch, decided that he might still indulge himself in darkness, and walked straight on.
I don't know whether Locke blinked, but I'm sure I am sorry for those who sat opposite to him if he did.
The worst of lewd literature is that it seems to give a sanction to lewdness in the life, and that inexperience takes this effect for reality: that is the danger and the harm, and I think the fact ought not to be blinked.
They were awfully nice little night-lights, and one cannot help wishing that they could have kept awake to see Peter; but Wendy's light blinked and gave such a yawn that the other two yawned also, and before they could close their mouths all the three went out.