'Disciplinal' definitions:

Definition of 'disciplinal'

(from WordNet)
adjective
Designed to promote discipline; "the teacher's action was corrective rather than instructional"; "disciplinal measures"; "the mother was stern and disciplinary" [syn: corrective, disciplinary, disciplinal]

Definition of 'Disciplinal'

From: GCIDE
  • Disciplinal \Dis"ci*plin*al\, a. Relating to discipline. --Latham. [1913 Webster]