The Collaborative International Dictionary of English v.0.48:
Plower \Plow"er\, Plougher \Plough"er\, n. One who plows; a plowman; a cultivator. [1913 Webster] PlowfootWordNet (r) 3.0 (2006):
plower n 1: a man who plows [syn: plowman, ploughman, plower]