nictation(n = noun.act) blink, blinking, eye blink, nictitation, wink, winking - a reflex that closes and opens the eyes rapidly;
is a kind of inborn reflex, innate reflex, instinctive reflex, physiological reaction, reflex, reflex action, reflex response, unconditioned reflex
has particulars: palpebration
Derived form verb nictate₁

   The act of winking; nictitation. [1913 Webster]