/ Thesaurus / A Synonyms of acid value Find synonyms for: Noun1. acid value, definite quantityusage: (chemistry) the amount of free acid present in fat as measured by the milligrams of potassium hydroxide needed to neutralize it; "as the glycerides in fat slowly decompose the acid value increases"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language