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

  • n. An extinct wild ox (Bos primigenius) of Europe, northern Africa, and western Asia, believed to be the ancestor of domestic cattle. Also called aurochs.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. The aurochs.

from the GNU version of the Collaborative International Dictionary of English

  • n. A very large, powerful, and savage extinct bovine animal (Bos urus or Bos primigenius) anciently abundant in Europe. It appears to have still existed in the time of Julius Cæsar. It had very large horns, and was hardly capable of domestication. Called also, ur, ure, and tur.

from The Century Dictionary and Cyclopedia

  • n. A kind of wild bull described by Cæsar; the mountain-bull, which ran wild in Gaul at the period of the Roman invasion, but has long been extinct.
  • n. [capitalized] A genus of Bovidæ, including the aurochs and extinct bisons: therefore equivalent to Bison as now employed.
  • n. A kind of fossil ox from Eschscholtz Bay, Alaska.

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

  • n. large recently extinct long-horned European wild ox; considered one of the ancestors of domestic cattle


Latin ūrus, of Germanic origin.
(American Heritage® Dictionary of the English Language, Fourth Edition)
From Latin ūrus (Wiktionary)



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