canal (n.)

early 15c., in anatomy, "tubular passage in the body through which fluids or solids pass;" mid-15c., "a pipe for liquid;" from French canal, chanel "water channel, tube, pipe, gutter" (12c.), from Latin canalis "water pipe, groove, channel," noun use of adjective from canna "reed" (see cane (n.)). Sense transferred by 1670s to "artificial waterway for irrigation or navigation."

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