/ Dictionary / Index P Pôrto Velho: Meaning and Definition of Find definitions for: Pôr•to Ve•lho Pronunciation: (pôr'too ve'lyoo), [key] a city in and the capital of Rondônia, in W Brazil, on the Madeira River. 83,178. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Porto Rico Port Phillip Bay Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language