from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Nautical The principal structural member of a ship, running lengthwise along the center line from bow to stern, to which the frames are attached.
- n. Nautical A ship.
- n. A structure, such as the breastbone of a bird, that resembles a ship's keel in function or shape.
- n. The principal structural member of an aircraft, resembling a ship's keel in shape and function.
- n. A pair of united petals in certain flowers, as those of the pea.
- transitive v. Nautical To capsize or cause to capsize.
- keel over To collapse or fall into or as if into a faint.
- n. Nautical A freight barge, especially one for carrying coal on the Tyne River in England.
- n. Nautical The load capacity of this barge.
- n. A British unit of weight formerly used for coal, equal to about 21.2 long tons.
- transitive v. Chiefly British To make cool.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a large beam along the underside of a ship’s hull from bow to stern
- n. sometimes, a rigid, flat piece of material anchored to the lowest part of the hull of a ship to give it greater control and stability
- n. a type of flat-bottomed boat
- n. something similar to chalk or crayon used to mark pavement
- v. to collapse, to fall
from the GNU version of the Collaborative International Dictionary of English
- v. To cool; to skim or stir.
- n. A brewer's cooling vat; a keelfat.
- n. A longitudinal timber, or series of timbers scarfed together, extending from stem to stern along the bottom of a vessel. It is the principal timber of the vessel, and, by means of the ribs attached on each side, supports the vessel's frame. In an iron vessel, a combination of plates supplies the place of the keel of a wooden ship. See Illust. of keelson.
- n. Fig.: The whole ship.
- n. A barge or lighter, used on the Tyne for carrying coal from Newcastle; also, a barge load of coal, twenty-one tons, four cwt.
- n. The two lowest petals of the corolla of a papilionaceous flower, united and inclosing the stamens and pistil; a carina. See Carina.
- n. A projecting ridge along the middle of a flat or curved surface.
- n. In a dirigible, a construction similar in form and use to a ship's keel; in an aëroplane, a fin or fixed surface employed to increase stability and to hold the machine to its course.
- intransitive v. To traverse with a keel; to navigate.
- intransitive v. To turn up the keel; to show the bottom.
from The Century Dictionary and Cyclopedia
- n. An early form of galley or small ship; a long boat: used with reference to Anglo-Saxon history.
- n. The principal timber in a ship or boat, extending from stem to stern at the bottom, supporting the whole frame, and consisting of a number of pieces scarfed and bolted together; in iron vessels, the combination of plates corresponding to the keel of a wooden vessel.
- n. In botany: A central longitudinal ridge along the back of any organ, as a leaf or glume.
- n. In a papilionaceous corolla, the lower pair of petals, which are more or less united into a prow-shaped body, usually inclosing the stamens and pistil.
- n. Another structure of similar form, as the lower petal in Polygala. Also called carina. See cut under banner.
- n. In zoology, a projecting ridge extending longitudinally along the middle of any surface.
- n. A ship.
- n. A strong, clumsy boat; a barge such as is used by the colliers at Newcastle in England.
- n. Hence A measure of coal, 8 Newcastle chaldrons, equal to 424 hundredweight.
- To plow with a keel, as the sea; navigate.
- To furnish with a keel.
- To turn up the keel; show the bottom.
- To give over; cease.
- To fall suddenly; tumble down or over, as from fright or a blow, or in a swoon.
- To make cool; cool; moderate the heat of, as that of the contents of a pot boiling violently by gently stirring them.
- To moderate the ardor or intensity of; assuage; appease; pacify; diminish.
- To become cool; cool down.
- n. In brewing, a broad flat vessel used for cooling liquids; a keelfat.
- n. Red chalk; ruddle.
- To mark, as a sheep, with ruddle.
- n. A variant of kail, 1.
- n. An obsolete or dialectal form of kill, kiln.
- n. In architecture, the projecting arris of an edge-molding.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. one of the main longitudinal beams (or plates) of the hull of a vessel; can extend vertically into the water to provide lateral stability
- v. walk as if unable to control one's movements
- n. the median ridge on the breastbone of birds that fly
- n. a projection or ridge that suggests a keel
Middle English kele, from Old Norse kjölr.
Middle English kele, from Middle Dutch kiel.
Middle English kelen, from Old English cēlan, to cool; see gel- in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English kele, from Old Norse kjǫlr. (Wiktionary)