When a cereal such as corn, wheat, or rice is threshed, it is beaten in order to separate the grains from the rest of the plant. The corn was still sown, cut and threshed as it was a hundred years ago. to separate grains of corn, wheat etc from the rest of the plant by beating it with a special tool or machine
To beat out grain from, as straw or husks; to beat the straw or husk of (grain) with a flail; to beat off, as the kernels of grain; as, to thrash wheat, rye, or oats; to thrash over the old straw
To practice thrashing grain or the like; to perform the business of beating grain from straw; as, a man who thrashes well