collision

/kəˈlɪʒən/

(physics) a brief event in which two or more bodies come together

中文释义：碰撞；冲突

The collision of two galaxies can trigger the formation of new stars.

两个星系的碰撞可能引发新恒星的形成。

A collision between the two particles was observed in the experiment.

实验中观测到了两个粒子的碰撞。