large river of North America, and one of the affluents of the Missouri. (See the article Missouri.) This is also the name of a tribe of Indians who inhabit that part of the Missouri territory through which the river flows during the first part of its course. They likewise extend across the country to the Arkansas, and even to Red River, and are considered as a powerful tribe.

Osara, or Asara, a village in the Syrian desert, near the Euphrates, 170 miles east-south-east of Aleppo.