adj. & n. (also co-operative)
adj. 1 of or affording cooperation. 2 willing to cooperate. 3 Econ. (of a farm, shop, or other business, or a society owning such businesses) owned and run jointly by its members, with profits shared among them.
n. a cooperative farm or society or business. cooperatively adv. cooperativeness n.
[ LL cooperativus (as COOPERATE) ]