to reject as having no authority or binding force: to repudiate a claim. to cast off or disown: to repudiate a son. to reject with disapproval or condemnation: to repudiate a new doctrine. to reject with denial: to repudiate a charge as untrue. to refuse to acknowledge and pay (a debt), as a state, municipality, etc.
A census metropolitan area (CMA) or a census agglomeration (CA) can have more than one core. The boundaries and population data for the cores that are used to delineate CMAs and CAs are taken from the previous census.
The Census. A census is an official count of the number of people in a region. The survey is done by a government, usually periodically. This page explains how and why censuses are taken.