'Diminuendo' definitions:

Definition of 'diminuendo'

(from WordNet)
adjective
Gradually decreasing in volume [syn: decrescendo, diminuendo]
noun
(music) a gradual decrease in loudness [syn: decrescendo, diminuendo]

Definition of 'Diminuendo'

From: GCIDE
  • Diminuendo \Di*min`u*en"do\, adv. [It., p. pr. of diminuere to diminish.] (Mus.) In a gradually diminishing manner; with abatement of tone; decrescendo; -- expressed on the staff by Dim., or Dimin., or the sign. [1913 Webster]