1 (formal 正式) a process of making sb/sth, especially your enemy, weaker by attacking him/her/it or causing problems for him/her/it over a period of time 消耗，削弱（敌人的力量）: It was a war of attrition. 这是一场消耗战。

2 (technical术语) the gradual removal of material from a mass by moving against it over a long period of time 磨损: The teeth show signs of attrition. 牙齿有磨损的迹象。 ☞picture at erode 见 erode 插图