- a member of a North American Indian people living along the Missouri River in W North Dakota
- the Caddoan language of this people
Origin of ArikaraFrench Aricara from Pawnee arikaráru?, elk, literally , horns; explained as an allusion to a hairstyle formerly worn by male members of this people
nounpl. Arikara, or A·rik·a·ras
- A member of a Native American people formerly inhabiting the Missouri River valley from Kansas into the Dakotas and now located in western North Dakota. Traditional Arikara life was based on agriculture and trade with the Plains Indians to the west.
- The Caddoan language of the Arikara.