earthball n 1: any of various fungi of the genus Scleroderma having hard- skinned subterranean fruiting bodies resembling truffles [syn: {earthball}, {false truffle}, {puffball}, {hard- skinned puffball}]
earthball \earth"ball`\ n. any of various fungi of the genus {Scleroderma} having hard-skinned subterranean trufflelike fruiting bodies. Syn: earth-ball, false truffle. [WordNet 1.5]