furcula


Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia.

fur·cu·la

(fŭr'kyū-lă),
1. The fused clavicles, which form the V-shaped bone (wishbone) of the bird's skeleton.
2. In the embryo, an inverted U-shaped elevation that appears on the ventral wall of the pharynx, being formed by the two linear ridges and the caudal part of the hypopharyngeal eminence; the depression enclosed by the U shape is the laryngotracheal groove.
[L. a forked prop, dim. of furca, a fork]

furcula

(fûr′kyə-lə)
n. pl. furcu·lae (-lē′) Zoology
A forked part or bone, such as the wishbone of a bird. Also called fourchette.

fur′cu·lar adv.

furcula

  1. the wishbone (clavicle) of birds.
  2. the forked springing organ of COLLEMBOLA.

furcula

the united clavicles in birds; a spring-like connection between the two shoulder joints; called also wishbone.
References in periodicals archive ?
This provided an approximate separation of birds with some fat present (categories 1-4, 1 = fat lining furcula to 4 = fat extending over pectoralis; presumably sufficient fat for continued flight) and birds without fat (categories 0 and 0.
The furcula was asymmetrical because the left clavicle was slightly thinner and more radiolucent than the right and was also slightly deviated to the right side.
8, electro scanning microphotographs of furcula posterior view; and 9, mucro antero-median view.