aggregation
Americannoun
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a group or mass of distinct or varied things, persons, etc..
an aggregation of complainants.
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collection into an unorganized whole.
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the state of being so collected.
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Biology, Ecology. a group of organisms of the same or different species living closely together but less integrated than a society.
noun
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the act or process of aggregating
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ecology dispersion in which the individuals of a species are closer together than if they were randomly dispersed
Other Word Forms
Etymology
Origin of aggregation
First recorded in 1540–50; from Medieval Latin aggregātiōn-, stem of aggregātiō “a flocking together, gathering”; see aggregate, -ion
Explanation
An aggregation is a collection, or the gathering of things together. Your baseball card collection might represent the aggregation of lots of different types of cards. Aggregation comes from the Latin ad, meaning to, and gregare, meaning herd. So the word was first used to literally mean to herd or to flock. Now it's just refers to anything herded together in a collection or assemblage. If you work in a lab, for example, you may be charged with the aggregation of samples prior to experimentation.
Vocabulary lists containing aggregation
The Jungle
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The Red Badge of Courage
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Fast Food Nation
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Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
In a culture of aggregation and AI summary, the stiffest original thinking still feels as supple as a tone poem, and genuine intellectual ambition akin to a secular miracle.
From Los Angeles Times ● Sep. 10, 2026
CoinEx said TRM’s aggregation of volumes that went back and forth was misleading and that volume estimates from a separate third-party provider were lower.
From The Wall Street Journal ● Jun. 25, 2026
If the best fleets can generate their own demand in dense markets, Uber’s aggregation value shrinks to secondary cities and overflow capacity.
From MarketWatch ● Jun. 24, 2026
"Our findings significantly shift tubulin's role in neurodegeneration, from a passive casualty of disease to an active protector against toxic protein aggregation," Ferreon said.
From Science Daily ● Jun. 21, 2026
Below and above us was the audience, row after row of faces, the arena a bowl-shaped aggregation of humanity.
From "Invisible Man" by Ralph Ellison
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
