An artificial waterway or artificially improved river used for travel, shipping, or irrigation.
A tubular channel within the body.
One of the faint, hazy markings resembling straight lines on early telescopic images of the surface of Mars.
To dig an artificial waterway in or to (a place), especially for drainage
To travel along a canal by boat
A sluice or pipe which allows the controlled flow of water from behind a dam, typically routing it to a turbine of a power plant.
The barrel of a wooden pump.