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

  • n. Zoology A forked part or bone, such as the wishbone of a bird. Also called fourchette.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A forked process or structure, generally two-pronged.
  • n. The forked bone formed by the fusion of the clavicles in birds, the wishbone or merrythought.
  • n. The (two-pronged,) forked, somewhat tail-like organ held bent forward and secured by a catch beneath most species of Collembola (springtails), with which they jump by releasing the catch abruptly when alarmed.

from the GNU version of the Collaborative International Dictionary of English

  • n. A forked process; the wishbone or furculum.

from The Century Dictionary and Cyclopedia

  • n. In ornithology, the united pair of clavicles of a bird, forming a single forked bone, whence the name.
  • n. In entomology, a forked process: specifically applied to a long bifid process on the bodies of certain caterpillars. See furciferous, 1.
  • n. In embryology, a forked median protuberance arising in the floor of the embryonic pharynx between the third and fourth pairs of visceral arches. It develops into the epiglottis of the adult.

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

  • n. a forked bone formed by the fusion of the clavicles of most birds


Latin, diminutive of furca, fork.
(American Heritage® Dictionary of the English Language, Fourth Edition)



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