Before revision: Shuswap Lake in British Columbia with its three arms In geography, an arm is a narrow extension, inlet, or smaller reach, of water flowing out from a much larger body of water, such as an ocean, a sea, or a lake.
After revision: yeaShuswap Lake in British Columbia with its three arms In geography, an arm is a narrow extension, inlet, or smaller reach, of water flowing out from a much larger body of water, such as an ocean, a sea, or a lake.