blink

(redirected from blink back)
Also found in: Dictionary, Thesaurus, Encyclopedia.

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 ?
The Queen appeared to blink back tears yesterday as she took on her late mother's role at the opening of the Field of Remembrance at Westminster Abbey.
Students get the "why" behind concepts like regrouping or fractions, Schiffano says, "At least several times a year, I blink back tears.
At one stage Majella's eyes began to well with emotion, but she managed to blink back the tears.