— cooperationist, co-operationist , n.
/koh op'euh ray"sheuhn/ , n.
1. an act or instance of working or acting together for a common purpose or benefit; joint action.
2. more or less active assistance from a person, organization, etc.: We sought the cooperation of various civic leaders.
3. willingness to cooperate: to indicate cooperation.
4. Econ. the combination of persons for purposes of production, purchase, or distribution for their joint benefit: producers' cooperation; consumers' cooperation.
5. Sociol. activity shared for mutual benefit.
6. Ecol. mutually beneficial interaction among organisms living in a limited area.
Also, co-operation .
[ 1620-30; ( cooperation- (s. of cooperatio ). See COOPERATE, -ION ]