quivering vs palpitation

quivering and palpitation both are nouns.

Word	Noun	Adjective	Verb	Adverb
quivering	Yes	No	No	No
palpitation	Yes	No	No	No

As nouns, quivering and palpitation are synonyms defined as:

Other synonyms of quivering include quiver, shakiness, shaking, trembling, vibration.

quivering (noun)	palpitation (noun)
the act of vibrating	a rapid and irregular heart beat
a shaky motion	a shaky motion