/ Dictionary / Index T terephthalate: Meaning and Definition of Find definitions for: ter•eph•thal•ate Pronunciation: (ter"ef-thal'āt, -it, tu-ref'thu-lāt"), [key] — n. Chem. a salt or ester of terephthalic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Terengganu terephthalic acid Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language