uropygium
U`ro*pyg"i*um, n. Etym: [NL., fr. Gr. (Anat.) Defn: 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.
U`ro*pyg"i*um, n. Etym: [NL., fr. Gr. (Anat.) Defn: 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.