/ Dictionary / Index P Pematangsiantar: Meaning and Definition of Find definitions for: Pe•ma•tang•sian•tar Pronunciation: (pu-mä"täng-syän'tär), [key] — n. a city on NE Sumatra, in Indonesia. 129,232. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pelycosaur Pemba Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language