mound bird | n. (Zool.) Any of several large-footed short-winged birds of Australasia, which build mounds of decaying vegetation to incubate eggs. Called also mound builder, mound maker, megapode, brush turkey, and scrub fowl. Syn. -- megapode, mound builder, scrub fowl, brush turkey. [ WordNet 1.5 ] Variants: moundbird |