simulation (
http://definr.com/simulation)
n 1: (computer science) the technique of representing the real
world by a computer program; "a simulation should
imitate the internal processes and not merely the
results of the thing being simulated" [syn: {computer
simulation}]
2: the act of simulating
3: representation of something (sometimes on a smaller scale)
[syn:
model]
4: the act of giving a false appearance; "his conformity was
only pretending" [syn:
pretense,
pretence,
pretending,
feigning]