/ Thesaurus / S Synonyms of sodium tripolyphosphate Find synonyms for: Noun1. sodium tripolyphosphate, builder, detergent builderusage: a sodium salt of triphosphoric acid used as a builder in soaps and detergentsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: effervescent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language