Main Entry: ag·gre·ga·tion

Pronunciation: \ˌa-gri-ˈgā-shən\

Function: noun

Date: 1547

1 : a group, body, or mass composed of many distinct parts or individuals
2 a : the collecting of units or parts into a mass or whole b : the condition of being so collected

— ag·gre·ga·tion·al \-shnəl, -shə-n^əl\ adjective