hyperidrosis vs perspiration

hyperidrosis and perspiration both are nouns.

Word	Noun	Adjective	Verb	Adverb
hyperidrosis	Yes	No	No	No
perspiration	Yes	No	No	No

As nouns, perspiration is a hypernym of hyperidrosis; that is, perspiration is a word with a broader meaning than hyperidrosis:

hyperidrosis: excessive and profuse perspiration
perspiration: the process of the sweat glands of the skin secreting a salty fluid

Other hypernyms of hyperidrosis include diaphoresis, hidrosis, sudation, sweating.

hyperidrosis (noun)	perspiration (noun)
excessive and profuse perspiration	salty fluid secreted by sweat glands
	the process of the sweat glands of the skin secreting a salty fluid