Variant: or (in Canada) Koo · te · nay
Pronunciation: ' kü-t ə - ˌ n ā , -t ə -n ē
Function: geographical name
river 407 mi (655 km ) SW Canada & NW U.S. in B.C., Mont., & Idaho flowing through Kootenay Lake (65 mi or 104 km long, in B.C.) into Columbia River