| 单词 | keel |
| 释义 | keel keel1 —keeled, adj. /keel/, n. 1. Naut. a 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. 2. Literary. a ship or boat. 3. a part corresponding to a ship's keel in some other structure, as in a dirigible balloon. 4. (cap.) Astron. the constellation Carina. 5. Bot. , Zool. a longitudinal ridge, as on a leaf or bone; a carina. 6. Also called brace molding. Archit. a projecting molding the profile of which consists of two ogees symmetrically disposed about an arris or fillet. 7. on an even keel, in a state of balance; steady; steadily: The affairs of state are seldom on an even keel for long. v.t. , v.i. 8. to turn or upset so as to bring the wrong side or part uppermost. 9. keel over, a. to capsize or overturn. b. to fall as in a faint: Several cadets keeled over from the heat during the parade. [1325-75; 1895-1900 for def. 9; ME kele < ON kjolr; c. OE ceol keel, ship; see KEEL2] keel2 /keel/, n. Brit. Dial. 1. keelboat. 2. a keelboat load of coal; the amount of coal carried by one keelboat. 3. a measure of coal equivalent to 21 long tons and 4 hundredweight (21.5 metric tons). [1375-1425; late ME kele < MD kiel ship; c. OE ceol ship, G kiel ship (obs.), KEEL1] keel3 /keel/, v.t. Brit. Dial. to cool, esp. by stirring. [bef. 900; ME kelen, OE celan to be cool; akin to COOL] keel4 /keel/, n. a red ocher stain used for marking sheep, lumber, etc.; ruddle. [1475-85; earlier keyle (north and Scots dial.); cf. ScotGael cìl (itself perh. < E)] |
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