Definitions of simulation:

  • noun:   the act of imitating the behavior of some situation or some process by means of something suitably analogous (especially for the purpose of study or personnel training)
  • noun:   (computer science) the technique of representing the real world by a computer program
    Example: "A simulation should imitate the internal processes and not merely the results of the thing being simulated"
  • noun:   representation of something (sometimes on a smaller scale)
  • noun:   the act of giving a false appearance