perturbation vs fuss

perturbation and fuss both are nouns.

Word	Noun	Adjective	Verb	Adverb
perturbation	Yes	No	No	No
fuss	Yes	No	Yes	No

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

Other hyponyms of perturbation include bother, hassle, trouble, magnetic storm.

perturbation (noun)	fuss (noun)
the act of causing disorder	a rapid active commotion
a disposition that is confused or nervous and upset	a quarrel about petty points
activity that is a malfunction, intrusion, or interruption	an angry disturbance
(physics) a secondary influence on a system that causes it to deviate slightly	an excited state of agitation
an unhappy and worried mental state

perturbation (verb)	fuss (verb)
	worry unnecessarily or excessively
	care for like a mother