aggregation

noun

ag·​gre·​ga·​tion ˌa-gri-ˈgā-shən How to pronounce aggregation (audio)
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 adjective

Examples of aggregation in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The community choice aggregation, or CCA, program plans to add an additional 72,000 commercial and industrial customers in June and is scheduled to fold in 695,000 residential customers next January. Rob Nikolewski, San Diego Union-Tribune, 28 May 2025 Instead of an aggregation lasting just a few days, waves of squids converged in a staggered event that lasted three weeks. Jules Jacobs, Smithsonian Magazine, 7 May 2025 An aggregation of national polls shows that the approval rating of his DOGE efforts has also dipped dramatically: Just 39 percent of Americans approve of his work, nearly 10 points lower than in mid-February. Charlie Warzel, The Atlantic, 2 Apr. 2025 Polling aggregation site Race to the WH currently shows Harris, who lost to Trump in 2024, leading the pack with a polling average of 27.2 percent. Martha McHardy, MSNBC Newsweek, 15 May 2025 See All Example Sentences for aggregation

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

Time Traveler
The first known use of aggregation was in 1547

Browse Nearby Words

Cite this Entry

“Aggregation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/aggregation. Accessed 5 Jun. 2025.

Kids Definition

aggregation

noun
ag·​gre·​ga·​tion ˌag-ri-ˈgā-shən How to pronounce aggregation (audio)
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 How to pronounce aggregation (audio)
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

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