the world > animals > birds > parts of or bird defined by > [noun] > head > appendage on (5)
esp. The red fleshy crest or caruncle on the head of the domestic fowl, attaining special development in the male bird; so called from its indented…
transferred. Zoology. A helmet-like structure, as in the cassowary, the toucans.
(on a domestic fowl) a type of comb that lies nearly flat on the head, evenly covered with small points and ending in a spike at the back…