'co-optation' definitions:

Definition of 'co-optation'

From: WordNet
noun
The selection of a new member (usually by a vote of the existing membership) [syn: co-option, co-optation]
noun
The act of appointing summarily (with or without the appointee's consent) [syn: co-option, co-optation]

Definition of 'co-optation'

From: GCIDE
  • co-optation \co-optation\, cooptation \co`["o]p*ta"tion\, n. [L. cooptatio.] The act of choosing; selection; choice. [Obs.] [1913 Webster]
  • The first election and cooptation of a friend. --Howell. [1913 Webster]
  • 2. the selection of a new member (usually by a vote of the existing membership). See co-opt[2].
  • Syn: co-option. [WordNet 1.5]
  • 3. the act of appointing summarily (with or without the appointee's consent).
  • Syn: co-option. [WordNet 1.5]