ag·​glom·​er·​a·​tion | \ə-ˌglä-mə-ˈrā-shən \

Definition of agglomeration 

1 : the action or process of collecting in a mass the agglomeration of matter into stars and galaxies

2 : a heap or cluster of usually disparate (see disparate sense 1) elements … an agglomeration of 100-year-old cottages with gingerbread scroll-saw ornamentation.— Ira Henry Freeman

3 : a large, densely and contiguously populated area consisting of a city and its suburbs an urban agglomeration

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Other Words from agglomeration

agglomerative \-​ˈglä-​mə-​ˌrā-​tiv \ adjective

Examples of agglomeration in a Sentence

This suburb has become just a vast agglomeration of houses, people, and cars. a mere agglomeration of warring tribes, it was far from being a unified nation

Recent Examples on the Web

Last, but by no means least, higher density means more agglomeration benefits, higher productivity, and ultimately higher wages. Matthew Yglesias, Vox, "The strong case for building more stuff," 24 Sep. 2018 Most left, and the WFP has shrunk down to a much smaller agglomeration of good government and do-gooder progressive groups. David Freedlander, Daily Intelligencer, "Working Families Party Mulls All-out War With Cuomo," 7 June 2018 It was also praised on Gab, a social network popular with the alt-right—a loose agglomeration of groups with far-right ideologies—as a morality play about a downtrodden Aryan warrior. Erich Schwartzel, WSJ, "Making Movies in the Trump Era for the Audience Hollywood Ignored," 15 May 2018 The setup is all the more serendipitous as the downstairs apartment was largely an agglomeration of subletters who found rooms on the Facebook group Gypsy Housing. Kim Velsey, New York Times, "When the Downstairs Neighbors Become Best Friends," 30 Apr. 2018 Imagining such groups as little virtual villages is an old tech cliché, an echo from the days when the agglomerations of people on the internet were smaller, more like-minded and manageable. Carina Chocano, New York Times, "What Good Is ‘Community’ When Someone Else Makes All the Rules?," 17 Apr. 2018 Artists will interpret a 1925 essay by Mexican philosopher José Vasconcelos, who believed humanity would create a new civilization from an agglomeration of races, without respect for color or class. Lawrence Toppman, charlotteobserver, "You want to see something you haven’t seen before? Stroll Plaza Midwood as it goes BOOM. | Charlotte Observer," 11 Apr. 2018 Graphene is a sheet of carbon atoms bonded to each other, just one atom thick; graphite is just an agglomeration of these sheets layered on top of each other. John Timmer, Ars Technica, "Scientists identify hundreds of atomically thin materials," 11 Feb. 2018 Angliss then sold his cache of Mark IV parts to Rod Leach of Hertfordshire, England, who decided to do something with the agglomeration of pieces. Davey G. Johnson, Car and Driver, "Jam Master J-12: Ford GT40 Mark IV Heading to Auction in Florida," 8 Feb. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'agglomeration.' 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 agglomeration

1661, in the meaning defined at sense 1

History and Etymology for agglomeration

borrowed from Medieval Latin agglomerātiōn-, agglomerātiō, from Latin agglomerāre "to agglomerate entry 1" + -tiōn-, -tiō, suffix of action nouns

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Last Updated

20 Nov 2018

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The first known use of agglomeration was in 1661

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English Language Learners Definition of agglomeration

: a large group, collection, or pile of different things

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What made you want to look up agglomeration? Please tell us where you read or heard it (including the quote, if possible).


a nest or breeding place

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