0 a member of a Native American tribe (= group of people) living in the northern part of the United States and southern Canada:
1 belonging or relating to the Sioux tribe (= group) of Native Americans living in the northern part of the United States and southern Canada:
In September, the expedition encountered the Teton Sioux for the first time.
Legend has it that thousands of Sioux escaped from a famous battle by entering this cave and coming out somewhere on the other side of the mountain.
Sebastian LeBeau, a Cheyenne River Sioux recently negotiated the release of several dozen partial sets of ancient remains from the University of Denver's Museum of Anthropology.
He died so close to enemy lines that the Sioux could not recover his body.
"The smoke," said Runs the Enemy, a Sioux warrior, "rolled up like a mountain over our heads."
The museum also has 866 artifacts collected in Minnesota, ranging from a pair of Ojibwe snowshoes to a Sioux tomahawk.
He was a Sioux chief's son.
