Drill

dril, v.t. to bore, pierce: to make with a drill: to exercise soldiers, pupils, .—to sow seeds, ., in rows.— n. an instrument for boring stone, metal, teeth, or hard substances (not wood), actuated by a kind of bow, by a brace, or otherwise: a large boring instrument used in mining: a ridge with seed or growing plants on it (turnips, potatoes, .): the plants in such a row: the machine for sowing the seed in drill-husbandry.— ns. Drill′-bar′row , a grain-drill driven by hand; Drill′-har′row , a harrow for working between drills; Drill′-hus′bandry , the method of sowing seed in drills or rows; Drill′ing-machine′ , Drill′ing-lathe , Drill′-pre , machines for boring with a drill or drills; Drill′-mas′ter , one who teaches drill, one who trains in anything, esp. in a mechanical manner; Drill′-plough , a plough for sowing grain in drills; Drill′-ser′geant , a sergeant who drills soldiers. [Prob. borrowed from Dut. drillen , to bore; dril , drille , a borer.]