n., adj., & v.
n. 1 a collection of, or the total of, disparate elements. 2 pieces of crushed stone, gravel, etc. used in making concrete. 3 a Geol. a mass of minerals formed into solid rock. b a mass of particles.
adj. 1 (of disparate elements) collected into one mass. 2 constituted by the collection of many units into one body. 3 Bot. a (of fruit) formed from several carpels derived from the same flower (e.g. raspberry). b (of a species) closely related.
v. 1 tr. & intr. collect together; combine into one mass. 2 tr. colloq. amount to (a specified total). 3 tr. unite (was aggregated to the group). in the aggregate as a whole. aggregation n. aggregative adj.
[ L aggregare aggregat- herd together (as AD-, grex gregis flock) ]