resistance unit vs ohm

resistance unit and ohm both are nouns.

Word	Noun	Adjective	Verb	Adverb
resistance unit	Yes	No	No	No
ohm	Yes	No	No	No

As nouns, ohm is a hyponym of resistance unit; that is, ohm is a word with a more specific, narrower meaning than resistance unit:

resistance unit: the reciprocal of conductance
ohm: a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere

Other hyponyms of resistance unit include abohm, megohm.

resistance unit (noun)	ohm (noun)
the reciprocal of conductance	a unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere