fric·tion/`frɪkʃən; ˈfrɪkʃən/ n [U] 1 when people disagree with each other and argue in an unfriendly way 不和，冲突: friction between parents and their teenage children 家长与其青少年子女的冲突 2 when one surface rubs against another 摩擦: the heat produced by friction 摩擦产生的热量