A clay tobacco-pipe used by American Indians, especially as a symbol of truce or peace.

plural of calumet

A ghost town in Huerfano County, Colorado. / A township in Cook County, Illinois. / The Calumet River, a system of rivers and canals between the south side of Chicago, Illinois and Gary, Indiana.

One of 72 counties in Wisconsin, United States. County seat: Chilton.

(mineralogy) An orthorhombic mineral containing chlorine, copper, hydrogen, and oxygen.