Pronunciation: (u-rik'ur-u), [key]
—pl. -ras, (esp. collectively) -ra for 1.
1. a member of a group of North American Indians of Pawnee origin who now inhabit the Dakota region.
2. the Caddoan language spoken by the Arikara.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.