Definition of micromodelling in US English:

micromodelling

(also micromodeling)

noun

  • The devising or use of conceptual or theoretical models of the constituent elements of systems, or of systems considered in terms of these elements, rather than at an overall level; (Economics) the devising or use of microeconomic models.

Origin

1960s. From micro- + modelling, after micromodel. With specifically use in economics compare micro.