Hi·dat·sa | \ hi-ˈdät-sə 
\
\ plural Hidatsa also Hidatsas
Definition of Hidatsa
1 : a member of an American Indian people of the Missouri River valley in North Dakota
2 : the Siouan language of the Hidatsa
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Time Traveler for Hidatsa
The first known use of Hidatsa was in 1873
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