wishbone

noun

1. 1

   A forked bone between the neck and breast of a bird consisting chiefly of the two clavicles fused at their median or lower end, regarded as a lucky charm in some countries.

2. 2

   A spar in two parts, between which a sail is hoisted, the wishbone extending its clew.

3. 3

   Any sailing vessel rigged with a wishbone.

4. 4

   A particular kind of offensive formation. See wishbone formation.