General Definition:
1. The path or trajectory of an object as it bounces off a flat surface or the ground, such as a ball bouncing or a bullet ricocheting, or any action or any thing directly or indirectly related to this.
As a Verb or Adjective:
1. Of an object, to hit a flat surface or the ground, and then move away immediately. English = bounce.
2. Of a bullet, to hit a surface and bounce away from it. English = ricochet.