| a tined auger mounted on a horizontal power-driven shaft, for pulverizing unplowed soil preparatory to planting. |
[roh-tuh-til-er] 
| a motorized device having spinning blades perpendicular to the ground and arranged like spokes, used for tilling soil. |
| rotary plow n. A plow having a series of hoes arranged on a revolving power-driven shaft. Also called rotary tiller. |
| rotary tiller n. See rotary plow. |
