aggregation

noun

ag·​gre·​ga·​tion ˌa-gri-ˈgā-shən 

1

: a group, body, or mass composed of many distinct parts or individuals

A galaxy is an aggregation of stars and gas.

2

a

: the collecting of units or parts into a mass or whole

b

: the condition of being so collected

aggregational

ˌa-gri-ˈgā-sh(ə-)nəl 

adjective

Examples of aggregation in a Sentence

Recent Examples on the Web

In the wake of the 2008 financial crisis, global banking institutions were forced to confront this exact structural bottleneck through sweeping, high-stakes mandates like BCBS 239 for risk data aggregation and CCAR for capital stress testing. — Barney Krishnan, Forbes.com, 21 Aug. 2026

The book tracked the aggregation of executive power from the founding onward, which accelerated during World War II and the Cold War. — Jake Lundberg, The Atlantic, 13 Aug. 2026

Aside from its costly – and risky — production and distribution business, Belmer has increasingly looked to reposition TF1 around streaming and aggregation. — Elsa Keslassy, Variety, 3 Aug. 2026

Foldamers could open new treatment avenues not only for Parkinson’s disease, but also for other neurodegenerative disorders driven by toxic protein aggregation, including Alzheimer’s disease and ALS. — Sunil Kumar, The Conversation, 31 July 2026

Word History

Etymology

Middle English aggreciacioun "process of adding numbers, gathering of pus or humors," borrowed from Late Latin aggregātiōn-, aggregātiō "gathering together," from Latin aggregāre "to cause to flock together, aggregate entry 2" + -tiōn-, -tiō, suffix of action nouns

First Known Use

1547, in the meaning defined at sense 1

Phrases Containing aggregation

• sign of aggregation

Rhymes for aggregation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation

Kids Definition

aggregation

noun

ag·​gre·​ga·​tion ˌag-ri-ˈgā-shən 

1

: the collecting of units or parts into a mass or whole

2

: a group, body, or mass composed of many distinct parts

Legal Definition

aggregation

noun

ag·​gre·​ga·​tion ˌa-grə-ˈgā-shən 

1

: the collecting of individual units (as damages) into a whole

2

: a collection of separate parts that is unpatentable because no integrated mechanism or new and useful result is produced compare combination, equivalent