'Disbud' definitions:

Definition of 'disbud'

(from WordNet)
verb
Thin out buds to improve the quality of the remaining flowers
verb
Destroy undeveloped horn buds (of cattle)

Definition of 'Disbud'

From: GCIDE
  • Disbud \Dis*bud"\, v. t. [See Bud, v.] (Hort.) To deprive of buds or shoots, as for training, or economizing the vital strength of a tree. [1913 Webster]