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on a collision course

idiom

Definition of on a collision course

: moving so as to crash into each other if one or the other does not change direction
  • The two airplanes were on a collision course.
—often + with
  • The comet was on a collision course with the planet.
 —often used figuratively
  • The government's policies are putting us on a collision course with economic disaster.

Word by Word Definitions

collision play

  1. : an act or instance of colliding : clash

  2. : an encounter between particles (such as atoms or molecules) resulting in exchange or transformation of energy

See the full definition of collision
course play

  1. : the act or action of moving in a path from point to point

  2. : the path over which something moves or extends: such as

  3. : racecourse

  1. : to follow close upon : pursue

  2. : to hunt or pursue (game) with hounds

  3. : to cause (dogs) to run (as after game)

See the full definition of course

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