~ 1
■ noun
1》 a lengthwise structure along the base of a ship, in some vessels extended downwards as a ridge to increase stability.
2》 Zoology a central ridge along the back or convex surface of an organ or structure.
3》 Botany a prow-shaped pair of petals present in flowers of the pea family.
■ verb ( ~ over )
1》 (of a boat or ship) turn over on its side; capsize.
2》 fall over.
Derivatives
~ed adjective
~less adjective
Origin
ME: from ON kjỏlr , of Gmc origin.
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~ 2
■ noun Brit. a flat-bottomed boat of a kind formerly used on the Rivers Tyne and Wear for loading coal-transporting ships.
Origin
ME: from Mid. Low Ger. kēl , MDu. kiel 'ship, boat'.