Cultivator

Pronunciation: k?l"t?-v?`t?r
n.

1. One who cultivates; as, a cultivator of the soil; a cultivator of literature.
2. An agricultural implement used in the tillage of growing crops, to loosen the surface of the earth and kill the weeds; esp., a triangular frame set with small shares, drawn by a horse and by handles.

In a broader signification it includes any complex implement for pulverizing or stirring the surface of the soil, as harrows, grubbers, horse hoes, etc.