A canal can cut across a drainage divide atop a ridge, generally requiring an external water source above the highest elevation The early middle eastern civilizations probably first built canals to supply drinking and irrigation water. Many canals have been built at elevations, above valleys and other waterways.
The meaning of canal is a tubular anatomical passage or channel Canal, artificial waterway built for transportation, irrigation, water supply, or drainage How to use canal in a sentence.
The alimentary canal is the path by which food enters the body, and solid waste is passed out. An artificial waterway for navigation, irrigation, etc. See examples of canal used in a sentence.
