Bruce n 1: Australian physician and bacteriologist who described the bacterium that causes undulant fever or brucellosis (1855-1931) [syn: {David Bruce}, {Sir David Bruce}] 2: King of Scotland from 1306 to 1329; defeated the English army under Edward II at Bannockburn and gained recognition of Scottish independence (1274-1329) [syn: {Robert the Bruce}, {Robert I}]