blinking vs nictation

blinking and nictation both are nouns.

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

As nouns, blinking and nictation are synonyms defined as:

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

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

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