| 单词 | collision |
| 释义 | collision —collisional, adj. /keuh lizh"euhn/, n. 1. the act of colliding; a coming violently into contact; crash: the collision of two airplanes. 2. a clash; conflict: a collision of purposes. 3. Physics. the meeting of particles or of bodies in which each exerts a force upon the other, causing the exchange of energy or momentum. [1400-50; late ME < LL collision- (s. of collisio), equiv. to collis(us) (ptp. of collidere to COLLIDE) + -ion- -ION] |
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