Drill"ing, n.
1.
The act of piercing with a drill.
2.
A training by repeated exercises.
© Webster 1913.
Drill"ing, n.
The act of using a drill in sowing seeds.
© Webster 1913.
Drill"ing, n. [G. drillich, fr. L. trilix having three threads, fr. the of tres three + licium a thread of the warm. See Three, and cf. Twill.] Manuf.
A heavy, twilled fabric of linen or cotton.
© Webster 1913.