/ Dictionary / Index A Arikara: Meaning and Definition of Find definitions for: A•rik•a•ra Pronunciation: (u-rik'ur-u), [key] — pl. -ras, -ra a member of a group of North American Indians of Pawnee origin who now inhabit the Dakota region. the Caddoan language spoken by the Arikara. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: arikara (Thesaurus) aright ariki Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language