'Drilled' definitions:

Definition of 'drilled'

(from WordNet)
adjective
Trained in a skill by repetitious practice; "well-drilled in military procedures"

Definition of 'Drilled'

From: GCIDE
  • Drill \Drill\, v. t. [imp. & p. p. Drilled; p. pr. & vb. n. Drilling.] [D. drillen to bore, drill (soldiers); probably akin to AS. pyrlian, pyrelian, to pierce. See Thrill.]
  • 1. To pierce or bore with a drill, or a with a drill; to perforate; as, to drill a hole into a rock; to drill a piece of metal. [1913 Webster]
  • 2. To train in the military art; to exercise diligently, as soldiers, in military evolutions and exercises; hence, to instruct thoroughly in the rudiments of any art or branch of knowledge; to discipline. [1913 Webster]
  • He [Frederic the Great] drilled his people, as he drilled his grenadiers. -- Macaulay. [1913 Webster]