threshing machine

Even his signature instrument, Auto-Tune, has become as accepted an ingredient in hip-hop as the drum machine.

The controlling leaders being out of gear the machine did not run smoothly: there was nothing but friction and tension.

Its backbone should be the study of biology and its substance should be the threshing out of the burning questions of our day.

A little black girl sat on the floor, and with her hands worked the treadle of the machine.

The sewing-machine made a resounding clatter in the room; it was of a ponderous, by-gone make.

The machine penetrated everywhere, thrusting aside with its gigantic arm the feeble efforts of handicraft.