Ag′gre‐ga″tion (�), n. [Cf. LL. aggregatio, F. agrégation.] The act of aggregating, or the state of being aggregated; collection into a mass or sum; a collection of particulars; an aggregate.
Each genus is made up by aggregation of species.
Carpenter.
A nation is not an idea only of local extent and individual momentary aggregation, but... of continuity, which extends in time as well as in numbers, and in space.
Burke.