a group or mass of distinct or varied things, persons, etc.:
an aggregation of complainants.
collection into an unorganized whole.
the state of being so collected.
Biology, Ecology. a group of organisms of the same or different species living closely together but less integrated than a society.
the act or process of aggregating
(ecology) dispersion in which the individuals of a species are closer together than if they were randomly dispersed

early 15c., from Middle French agrégation or directly from Medieval Latin aggregationem (nominative aggregatio), noun of action from past participle stem of Latin aggregare (see aggregate (adj.)).

aggregation ag·gre·ga·tion (āg’rĭ-gā’shən)
A massing together or clustering of independent but similar units, such as particles, parts, or bodies.


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    of or relating to an . forming or tending to form an . Historical Examples Fancy is aggregative and associative,—Imagination is creative, motive. Rab and His Friends and Other Papers John Brown I reckon I might have been too aggregative in my tabulation. Roads of Destiny O. Henry Are you not, in general, exaggerating the […]

  • Aggregator

    a person or thing that . Digital Technology. a Web-based or installed application that aggregates related, frequently updated content from various Internet sources and consolidates it in one place for viewing: an automated news aggregator. Compare (def 23), . a company that negotiates the purchase of public-utility services on behalf of a group of customers […]

  • Aggregatory

    formed by the conjunction or collection of particulars into a whole mass or sum; total; combined: the aggregate amount of indebtedness. Botany. (of a flower) formed of florets collected in a dense cluster but not cohering, as the daisy. (of a fruit) composed of a cluster of carpels belonging to the same flower, as the […]

  • Aggress

    to commit the first act of hostility or offense; attack first. to begin to quarrel. to behave toward; attack (often followed by upon): wild animals aggressing their prey. Contemporary Examples They experience boredom, sickness, early deaths and they aggress, attacking and even killing human beings. ‘Blackfish’ Director: Killer Whales Don’t Belong in Captivity Gabriela Cowperthwaite […]

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