WordNet (r) 3.0 (2006):
ploughland n 1: arable land that is worked by plowing and sowing and raising crops [syn: cultivated land, farmland, plowland, ploughland, tilled land, tillage, tilth]Bouvier's Law Dictionary, Revised 6th Ed (1856):
PLOUGH-LAND, old Eng. law. An uncertain quantity of land; but, according to some opinions, it contains one hundred and twenty acres. Co. Litt. 69 a.