sim ‧ u ‧ la ‧ tion AC /ˌsɪmjəˈleɪʃ ə n, ˌsɪmjʊˈleɪʃ ə n/ BrE AmE noun
[ Word Family: noun : ↑ simulation , ↑ simulator ; verb : ↑ simulate ; adjective : ↑ simulated ]
[uncountable and countable] the activity of producing conditions which are similar to real ones, especially in order to test something, or the conditions that are produced:
a computer simulation used to train airline pilots
simulation of
a simulation of a rainforest environment