What is good definition of cooptation

Do you know the meaning of cooptation?It may refer to the process of adding members to an elite group at the discretion of members of the body, usually to manage opposition and so maintain the stability of the group.[noun] the actions of someone who is being helpful by doing what is wanted or asked for :Election the act of selecting someone or something;Coopetition is the act of cooperation between competing companies;

Policy outcomes desired by challengers are sometimes accomplished and benefits may accrue to movements and their organizations through the cooptation process, which is a social and political process that.To add to a committee, board, etc, by the agreement of the existing members 2.