[ ag-ri-gey-shuhn ]
See synonyms for aggregation on
  1. a group or mass of distinct or varied things, persons, etc.: an aggregation of complainants.

  2. collection into an unorganized whole.

  1. the state of being so collected.

  2. Biology, Ecology. a group of organisms of the same or different species living closely together but less integrated than a society.

Origin of aggregation

First recorded in 1540–50; from Medieval Latin aggregātiōn-, stem of aggregātiō “a flocking together, gathering”; see aggregate, -ion

Other words from aggregation

  • ag·gre·ga·tion·al, adjective
  • re·ag·gre·ga·tion, noun
  • sub·ag·gre·ga·tion, noun

Words Nearby aggregation Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use aggregation in a sentence

British Dictionary definitions for aggregation


/ (ˌæɡrɪˈɡeɪʃən) /

  1. the act or process of aggregating

  2. ecology dispersion in which the individuals of a species are closer together than if they were randomly dispersed

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012