Definition of aggregation in English:

aggregation

noun

  • 1[mass noun] The formation of a number of things into a cluster:

    ‘a single dose of aspirin irreversibly inhibits the normal aggregation of platelets’
    1. 1.1[count noun] A cluster of things that have come or been brought together:
      ‘the pelican is the other bird likely to be found in large aggregations in East Africa's wetlands’
    2. 1.2 (on the Internet) the collection of related items of content so that they can be displayed or linked to:
      ‘a desktop aggregation app that brings together Facebook, Twitter, and LinkedIn’

Pronunciation:

aggregation

/aɡrɪˈɡeɪʃ(ə)n/