Drill"ing, n. 1.
The act of piercing with a drill.
2. A training by repeated
exercises.
Drill"ing, n. The act of using a
drill in sowing seeds.
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.