acetum vs wine vinegar

acetum and wine vinegar both are nouns.

Word	Noun	Adjective	Verb	Adverb
acetum	Yes	No	No	No
wine vinegar	Yes	No	No	No

As nouns, wine vinegar is a hyponym of acetum; that is, wine vinegar is a word with a more specific, narrower meaning than acetum:

acetum: sour-tasting liquid produced usually by oxidation of the alcohol in wine or cider and used as a condiment or food preservative
wine vinegar: vinegar made from wine

Other hyponyms of acetum include chili vinegar, cider vinegar.

acetum (noun)	wine vinegar (noun)
sour-tasting liquid produced usually by oxidation of the alcohol in wine or cider and used as a condiment or food preservative	vinegar made from wine
a dilute solution of acetic acid that is used as a solvent (e.g. for a drug)