from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Either of the two rounded prominences on the human torso that are posterior to the hips and formed by the gluteal muscles and underlying structures.
  • n. The analogous part of the body on certain mammals.
  • n. The rear pelvic area of the human body.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Each of the two large fleshy halves of the posterior part of the body between the base of the back and the top of the legs.
  • n. The convexity of a ship behind, under the stern.

from the GNU version of the Collaborative International Dictionary of English

  • n. The part at the back of the hip, which, in man, forms one of the rounded protuberances on which he sits; the rump. Often used in the plural -- see buttocks.
  • n. The convexity of a ship behind, under the stern.

from The Century Dictionary and Cyclopedia

  • n. Either of the two protuberances which form the rump in men and animals; in the plural, the rump; the gluteal region of the body, more protuberant in man than in any other animal; the bottom.
  • n. The upper aftermost portion of the continuation of the contour of a ship's bottom. Thearle, Naval Arch.
  • n. In coal-mining, the portion of a face of coal ready to be next taken down.
  • n. A piece of armor for the rump of a horse. See croupière.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. either of the two large fleshy masses of muscular tissue that form the human rump


Middle English, from Old English buttuc, strip of land, end; see bhau- in Indo-European roots.
(American Heritage® Dictionary of the English Language, Fourth Edition)
Probably from Old English buttuc ("end, short piece of land"), attested since circa 1300, diminutive form of what is presumedly the Old English precursor of butt. (Wiktionary)



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  • Railroad telegrahpers' code for "Do not buy on joint account". --US Railway Association, Standard Cipher Code, 1906.

    January 21, 2013