Dictionary
ter'eph•thal'ic ac'id
Pronunciation: (ter'ef-thal'ik, ter"-), [key] Chem.
a white, crystalline, water-insoluble solid, C
8H
6O
2, the para isomer of phthalic acid: used chiefly in the manufacture of resins and textile fibers.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.