The Collaborative International Dictionary of English v.0.48:

Cooperative \Co*["o]p"er*a*tive\, a.
   Operating jointly to the same end.
   [1913 Webster]

   Cooperative society, a society established on the principle
      of a joint-stock association, for the production of
      commodities, or their purchase and distribution for
      consumption, or for the borrowing and lending of capital
      among its members.

   Cooperative store, a store established by a cooperative
      society, where the members make their purchases and share
      in the profits or losses.
      [1913 Webster]