Arminius n 1: Dutch Protestant theologian who founded Arminianism which opposed the absolute predestinarianism of John Calvin (1559-1609) [syn: {Jacobus Arminius}, {Jacob Harmensen}, {Jakob Hermandszoon}] 2: German hero; leader at the battle of Teutoburger Wald in AD 9 (circa 18 BC - AD 19) [syn: {Armin}, {Hermann}]