winking vs palpebration

winking and palpebration both are nouns.

Word	Noun	Adjective	Verb	Adverb
winking	Yes	Yes	No	No
palpebration	Yes	No	No	No

As nouns, palpebration is a hyponym of winking; that is, palpebration is a word with a more specific, narrower meaning than winking:

winking: a reflex that closes and opens the eyes rapidly
palpebration: repeated blinking or winking (especially if uncontrolled and persistent)

winking (noun)	palpebration (noun)
a reflex that closes and opens the eyes rapidly	repeated blinking or winking (especially if uncontrolled and persistent)

winking (adjective)	palpebration (adjective)
closing the eyes intermittently and rapidly