/ Dictionary / Index P PABA: Meaning and Definition of Find definitions for: PABA Pronunciation: (pä'bu), [key] — n. para-aminobenzoic acid. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: paba (Thesaurus) Paasikivi Pablo Related Content Daily Word Quiz: overture Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language