n. & v.
n. 1 a machine used for making furrows, sowing, and covering seed. 2 a small furrow for sowing seed in. 3 a ridge with such furrows on top. 4 a row of plants so sown.
v.tr. 1 sow (seed) with a drill. 2 plant (the ground) in drills.
[ perh. f. obs. drill rill (17th c., of unkn. orig.) ]