1610s, from French intégration and directly from Latin integrationem (nominative integratio) "renewal, restoration," noun of action from past participle stem of integrare (see integrate). Anti-discrimination sense is recorded from 1940 in a S.African context.

In calculus, the process of calculating an integral. Integration is the inverse of differentiation, since integrating a given function results in a function whose derivative is the given function. Integration is used in the calculation of such things as the areas and volumes of irregular shapes and solids. Compare differentiation.

The free association of people from different racial and ethnic backgrounds (seeethnicity); a goal of the civil rights movement to overcome policies of segregation that have been practiced in the United States.

Note

Those favoring integration of schools by such forceful means as busing or affirmative action have frequently argued that integration of schools will lead to integration of society as a whole. (Seeseparate but equal.)