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.
References in periodicals archive ?
Blinken congratulated the Finance Minister on the successes achieved by Pakistan in the Zarb-e-Azb operation.
"He has a very hard choice to make," Blinken said of Putin.
Blinken acknowledged that nationalism has initially boosted the popularity of Putin among Russian citizens, but Russia is now spending "billions and billions of dollars to prop up Crimea.