meaning of cultivator
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. 
3.  a farm implement used to break up the surface of the soil for aeration and weed control and conservation of moisture
						 
