Nautical, Naval Termsa central fore-and-aft structural member in the bottom of a hull, extending from the stem to the sternpost and having the floors or frames attached to it, usually at right angles: sometimes projecting from the bottom of the hull to provide stability.
[Literary.]a ship or boat.
a part corresponding to a ship's keel in some other structure, as in a dirigible balloon.
Astronomy(cap.) the constellation Carina.
Botany, Zoologya longitudinal ridge, as on a leaf or bone; a carina.
ArchitectureAlso called brace molding. a projecting molding the profile of which consists of two ogees symmetrically disposed about an arris or fillet.
Idiomson an even keel, in a state of balance; steady; steadily:The affairs of state are seldom on an even keel for long.
to turn or upset so as to bring the wrong side or part uppermost.
to capsize or overturn.
to fall as in a faint:Several cadets keeled over from the heat during the parade.
Old Norse kjǫlr; cognate with Old English cēol keel, ship; see keel2
1325–75; 1895–1900 for def. 9; Middle English kele
keel2(kēl),USA pronunciationn.[Brit. Dial.]
British Terms, Naval Termskeelboat.
British Termsa keelboat load of coal; the amount of coal carried by one keelboat.
British Terms, Weights and Measuresa measure of coal equivalent to 21 long tons and 4 hundredweight (21.5 metric tons).
Middle Dutch kiel ship; cognate with Old English cēol ship, German kiel ship (obsolete), keel1
late Middle English kele 1375–1425
keel3(kēl),USA pronunciationv.t.[Brit. Dial.]
British Termsto cool, esp. by stirring.
bef. 900; Middle English kelen, Old English cēlan to be cool; akin to cool
a red ocher stain used for marking sheep, lumber, etc.; ruddle.
1475–85; earlier keyle (north and Scots dialect, dialectal); compare Scots Gaelic cìl (itself perh.