Definition of "integration"

The act or process of making whole or entire.  examples

The process of combining with compatible elements in order to incorporate them.  examples

(society) The process of fitting into a community, notably applied to minorities.

1. (US) Ellipsis of racial integration..  examples

(calculus) The operation of finding the integral of a function.  examples

(biology) In evolution, the process by which the manifold is compacted into the relatively simple and permanent; supposed to alternate with differentiation as an agent in species' development.