nictation vs blinking

nictation and blinking both are nouns.

Word	Noun	Adjective	Verb	Adverb
nictation	Yes	No	No	No
blinking	Yes	Yes	No	No

As nouns, nictation and blinking are synonyms defined as:

Other synonyms of nictation include blink, eye blink, nictitation, wink, winking.

nictation (noun)	blinking (noun)
a reflex that closes and opens the eyes rapidly	a reflex that closes and opens the eyes rapidly

nictation (adjective)	blinking (adjective)
	closing the eyes intermittently and rapidly
	informal intensifiers