1560s, "a chafing, rubbing," from Middle French friction (16c.) and directly from Latin frictionem (nominative frictio) "a rubbing, rubbing down," noun of action from past participle stem of fricare "to rub, rub down," which is of uncertain origin. Watkins suggests possibly from PIE root *bhreie- "to rub, break." Sense of "resistance to motion" is from 1722; figurative sense of "disagreement, clash, lack of harmony, mutual irritation" first recorded 1761. Related: Frictional.
实用例句
1. The friction of the sheets against his skin was torture.
被单摩擦着他的皮肤，简直像是酷刑。
来自柯林斯例句
2. The pistons are graphite-coated to reduce friction.
活塞上涂了一层石墨以减小摩擦力。
来自柯林斯例句
3. the coefficient of friction
摩擦系数
来自《权威词典》
4. Friction between moving parts had caused the engine to overheat.
活动部件的摩擦使发动机过热。
来自《权威词典》
5. When Joan returned to work, the friction between them increased.
