hypertonus vs tonus

hypertonus and tonus both are nouns.

Word	Noun	Adjective	Verb	Adverb
hypertonus	Yes	No	No	No
tonus	Yes	No	No	No

As nouns, tonus is a hypernym of hypertonus; that is, tonus is a word with a broader meaning than hypertonus:

hypertonus: (of muscular tissue) the state of being hypertonic
tonus: the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli

Other hypernyms of hypertonus include tone, tonicity.

hypertonus (noun)	tonus (noun)
(of muscular tissue) the state of being hypertonic	the elastic tension of living muscles, arteries, etc. that facilitate response to stimuli