noun
1. a member of the Sioux people formerly inhabiting an area along the Missouri river in western North Dakota
• Syn: ↑Gros Ventre
2. a Siouan language spoken by the Hidatsa
• Syn: ↑Gros Ventre
• Hypernyms: ↑Siouan, ↑Siouan language
Useful english dictionary. 2012.