ag·​gre·​ga·​tion | \ ˌa-gri-ˈgā-shən \

Definition of aggregation

1 : a group, body, or mass composed of many distinct parts or individuals A galaxy is an aggregation of stars and gas.
2a : the collecting of units or parts into a mass or whole
b : the condition of being so collected

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Other Words from aggregation

aggregational \ -​shnəl , -​shə-​nᵊl \ adjective

Examples of aggregation in a Sentence

Recent Examples on the Web

With the purchase, Grubhub would add point-of-sale capabilities in addition to being in the delivery and online order-aggregation business, said Matthew DiFrisco, an analyst for Guggenheim Securities LLC. Aisha Al-muslim, WSJ, "Grubhub Surges With Deal to Buy LevelUp," 25 July 2018 Nickell said notices of the new aggregation deal would be mailed in August to residents. Chuck Fieldman,, "Clarendon Hills opts for renewable electricity option for aggregation," 20 June 2018 As DERs and their aggregations grow more numerous and larger, the risk arises that large chunks of the system will receive dueling instructions. David Roberts, Vox, "Clean energy technologies threaten to overwhelm the grid. Here’s how it can adapt.," 30 Nov. 2018 By 1979, all municipal dumps in the Greater Yellowstone Ecosystem that had aggregations of grizzly bears were closed and many bears that previously ate garbage dispersed, according to federal studies. Jim Carlton, WSJ, "Grizzly Hunt Is Scratched in Wyoming and Fur Flies Over Bear Population," 26 Sep. 2018 According to Ticket IQ aggregation software, the average NHL ticket asking price at the start of the current season across the secondary market was $151. Geoff Baker, The Seattle Times, "How much money can Seattle NHL fans expect to pay for tickets? More than in most other sports," 5 Dec. 2018 Soon there will be all kinds of combinations and aggregations, at all levels, across every one of hundreds of LDAs. David Roberts, Vox, "Clean energy technologies threaten to overwhelm the grid. Here’s how it can adapt.," 30 Nov. 2018 Google, like Apple and Facebook and Twitter and everybody else, apparently really wants to be in the news aggregation game. Dieter Bohn, The Verge, "Will Google’s homepage news feed repeat Facebook’s mistakes?," 29 Oct. 2018 An unknown software engineer created a news aggregation app powered by artificial intelligence. Recode Staff, Recode, "Recode Daily: With the SEC off his back, Elon Musk can return his focus to Tesla," 1 Oct. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'aggregation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of aggregation

1547, in the meaning defined at sense 1

History and Etymology for aggregation

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

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Last Updated

20 Jan 2019

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Time Traveler for aggregation

The first known use of aggregation was in 1547

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ag·​gre·​ga·​tion | \ ˌa-gri-ˈgā-shən \

Kids Definition of aggregation

1 : the collecting of units or parts into a mass or whole The formation of a blood clot begins with the aggregation of platelets.
2 : a group, body, or mass composed of many distinct parts A galaxy is an aggregation of stars, gas, and dust.


ag·​gre·​ga·​tion | \ ˌa-grə-ˈgā-shən \

Legal Definition of aggregation

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

More from Merriam-Webster on aggregation

Rhyming Dictionary: Words that rhyme with aggregation

Britannica English: Translation of aggregation for Arabic Speakers

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