cholesterol vs steroid alcohol

cholesterol and steroid alcohol both are nouns.

Word	Noun	Adjective	Verb	Adverb
cholesterol	Yes	No	No	No
steroid alcohol	Yes	No	No	No

As nouns, steroid alcohol is a hypernym of cholesterol; that is, steroid alcohol is a word with a broader meaning than cholesterol:

cholesterol: an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues
steroid alcohol: any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances

Other hypernyms of cholesterol include sterol.

cholesterol (noun)	steroid alcohol (noun)
an animal sterol that is normally synthesized by the liver; the most abundant steroid in animal tissues	any of a group of natural steroid alcohols derived from plants or animals; they are waxy insoluble substances