collision detection

/K AH0 L IH1 ZH AH0 N D IH0 T EH0 K SH AH0 N/
noun
  1. 1

    (computing, chiefly video games) The process or mechanism of determining whether two shapes are partially occupying the same space.

  2. 2

    (networking) A mechanism in Ethernet to detect when two computers are sending frames at the same time, and also to deal with such collisions when they happen.