D defs.my
Entry 1 sense Webster, 1913

Uropygium

· U·ro·pyg·i·um · IPA /jʊəɹəˈpɪd͡ʒɪəm/
01 n. The prominence at the posterior extremity of a bird's body, which supports the feathers of the tail; the rump; -- sometimes called pope's nose.
  1. 1.
    The prominence at the posterior extremity of a bird's body, which supports the feathers of the tail; the rump; -- sometimes called pope's nose.(Anat.)