To close and open the eyes rapidly; an involuntary act by which the tears are spread over the conjunctiva, keeping it moist. SYN: wink.
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blink 'bliŋk vi to close and open the eyes involuntarily (as when struggling against drowsiness or when dazzled) vt
2) to remove (as tears) from the eye by blinking
blink n a usu. involuntary shutting and opening of the eye
Medical dictionary. 2011.