aggregate

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aggregate

1. (of fruits and flowers) composed of a dense cluster of carpels or florets
2. Geology a rock, such as granite, consisting of a mixture of minerals
3. a group of closely related biotypes produced by apomixis, such as brambles, which are the Rubus fruticosus aggregate
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

Aggregate

Any of a variety of materials, such as sand and gravel, added to a cement mixture to make concrete.
Illustrated Dictionary of Architecture Copyright © 2012, 2002, 1998 by The McGraw-Hill Companies, Inc. All rights reserved

aggregate

any collection of units or parts, however temporary or fortuitous; thus the contrast may sometimes be drawn between mere aggregates, with no internal structure or basis for persistence, and GROUPS, COMMUNITIES, etc, which will usually possess clear internal structure, coherence, cohesion and relative persistence.
Collins Dictionary of Sociology, 3rd ed. © HarperCollins Publishers 2000
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Aggregate

 

in mineralogy and petrography, an accumulation and accretion of fragments of one or several minerals of varying shapes and structures. Aggregates are classified as cemented, friable, earthy, porous, or dense. According to the shape of the grain, they are called grainy, crystalline, needle-shaped, cubic, fibrous, tangled fibrous, radial, uniform crystalline, shell-shaped, accumulative, and so on; and according to composition, simple—consisting of a single mineral (for example, quartzite, which consists of quartz, and marble, which consists of calcite)—and complex, consisting of several minerals (for example, granite is an aggregate of quartz, feldspar, and mica).

V. P. PETROV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.

aggregate

[′ag·rə·gət]
(botany)
Referring to fruit formed in a cluster, from a single flower, such as raspberry, or from several flowers, such as pineapple.
(chemistry)
A group of atoms or molecules that are held together in any way, for example, a micelle.
(geology)
A collection of soil grains or particles gathered into a mass.
(materials)
The natural sands, gravels, and crushed stone used for mixing with cementing material in making mortars and concretes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

aggregate

1. An inert granular material such as natural sand, manufactured sand, gravel, crushed gravel, crushed stone, vermiculite, perlite, and air-cooled blast-furnace slag, which when bound together into a conglomerate mass by a matrix forms concrete or mortar.
2. An inert granular material that may be added to gypsum plaster.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

aggregate

General term for the mineral fragments or particles which, through the agency of a suitable binder, can be combined in a solid mass, e.g., to form a pavement (ICAO).
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

aggregate

To gather, collect or assemble. For example, "to aggregate data" means to gather separate sets of data. As a noun, "aggregate data" is data that has been collected from two or more sources. See content aggregator.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
The Service aggregated both blocks of stock for valuation purposes, claiming they were both owned by Harriett's estate.
The Tax Court held that the two blocks of stock should not be aggregated and that, based on expert testimony, a 25% discount for lack of marketability as a minority interest should be allowed for each stock block.
179 expenses allocated to him from each partnership is aggregated with any nonpartnership Sec.
179 property is aggregated with the partnership's Sec.
Are gross receipts from business activities of other exempt group members and their subsidiaries aggregated with those of the hospital for determining whether the 10 million exception applies?

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