The Collaborative International Dictionary of English v.0.48:
Battle-ax \Bat"tle-ax`\ Battle-axe \Bat"tle-axe`\(-[a^]ks`), n. (Mil.) A kind of broadax formerly used as an offensive weapon. [1913 Webster]WordNet (r) 3.0 (2006):
battle-ax n 1: a broadax used as a weapon [syn: battle-ax, battle-axe] 2: a sharp-tongued domineering wife [syn: battle-ax, battle- axe]