canal

[ kuh-nal ]
/ kəˈnæl /

noun

an artificial waterway for navigation, irrigation, etc.
a long narrow arm of the sea penetrating far inland.
a tubular passage or cavity for food, air, etc., especially in an animal or plant; a duct.
channel; watercourse.
Astronomy. one of the long, narrow, dark lines on the surface of the planet Mars, as seen telescopically from the earth.

verb (used with object), ca·nalled or ca·naled, ca·nal·ling or ca·nal·ing.

to make a canal through.

Origin of canal

1400–50; late Middle English: waterpipe, tubular passage < Latin canālis, perhaps equivalent to can(na) reed, pipe (see cane) + -ālis -al1; def. 5 a mistranslation of Italian canali channels, term used by G. V. Schiaparelli

British Dictionary definitions for canal

canal
/ (kəˈnæl) /

noun

an artificial waterway constructed for navigation, irrigation, water power, etc
any of various tubular passages or ducts the alimentary canal
any of various elongated intercellular spaces in plants
astronomy any of the indistinct surface features of Mars originally thought to be a network of channels but not seen on close-range photographs. They are caused by an optical illusion in which faint geological features appear to have a geometric structure

verb -nals, -nalling or -nalled or US -nals, -naling or -naled (tr)

to dig a canal through
to provide with a canal or canals

Word Origin for canal

C15 (in the sense: pipe, tube): from Latin canālis channel, water pipe, from canna reed, cane 1

Medical definitions for canal

canal
[ kə-năl ]

n.

A duct, a channel, or a tubular structure.