a psychology based on the assumption that all mental process are useful to an organism in adapting to the environment
any doctrine that stresses utility or purpose
functionalism详细解释
func.tion.al.ism n.（名词）The doctrine that the function of an object should determine its design and materials.功能主义：物体的功用应该决定其设计和材料的教义A doctrine stressing purpose, practicality, and utility.强调目的性、实践性和实用性的理论 【引伸】 func.tionalist. adj.（形容词）n.（名词）
