D defs.my
Entry 1 sense Webster, 1913

Aggregation

/ăgˌ-rəg-āsh'-ən/ · Ag·gre·ga·tion · IPA /æɡɹəˈɡeɪʃən/
01 n. The act of aggregating, or the state of being aggregated; collection into a mass or sum; a collection of particulars; an aggregate.
  1. 1.
    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.