Noun
microworld (plural microworlds)
The world as it exists at a microscopic scale, subject to quantum effects etc. [from 20th c.]
As another example, the Global Challenge Award online STEM learning web site uses microworld simulations to teach science concepts related to global warming and the future of energy. Source: Internet
Normally, a user can create some sort of construction within the microworld that will behave in a way consistent with the concepts being modeled. Source: Internet