'Institutional' definitions:

Definition of 'institutional'

From: WordNet
adjective
Relating to or constituting or involving an institution; "institutional policy"
adjective
Organized as or forming an institution; "institutional religion" [ant: noninstitutional]

Definition of 'Institutional'

From: GCIDE
  • Institutional \In`sti*tu"tion*al\, a.
  • 1. Pertaining to, or treating of, an institution or institutions; as, institutional legends. [1913 Webster]
  • Institutional writers as Rousseau. --J. S. Mill. [1913 Webster]
  • 2. Instituted by authority. [1913 Webster]
  • 3. Elementary; rudimental. [1913 Webster]