Dictionary
Hi•dat•sa
Pronunciation: (hē-dät'sä), [key]—
n.,
—pl. -sas, (esp. collectively) -sa for 1.
1. a member of a Siouan people dwelling on the Missouri River.
2. the Siouan language of the Hidatsa tribe.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.