simulation
sim.u.la.tion \.sim-y*-'la--sh*n\ n 1: the act or process of simulating : FEIGNING 2: a sham object : COUNTERFEIT
Webster's English Dictionarysim.u.la.tion \.sim-y*-'la--sh*n\ n 1: the act or process of simulating : FEIGNING 2: a sham object : COUNTERFEIT