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

Aggregate

Any of a variety of materials, such as sand and gravel, added to a cement mixture to make concrete.

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.

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

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.

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.

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).

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.
References in periodicals archive ?
Such assumption is realistic for computing aggregative functions.
For present purposes, the doctrinal disagreement is important only insofar as it highlights the underlying debate between aggregative and deliberative views of constitutional amendments.
Identification of an aggregative adhesion fimbria (AAF) type III-encoding operon in enteroaggregative Escherichia coli as a sensitive probe for detecting the AAF-encoding operon family.
In its nonphilosophical forms, which better capture how democratic decision making actually occurs in the United States, the aggregative conception sees democratic decision making as strategic rather than deliberative; it is a process whereby individuals and groups attempt to win assent to their previously settled views (preferences) using whatever rhetorical strategies prove effective, including advertising, sound bites, issue framing, and so on.
So the possibility of an infinite world presents a graver problem for aggregative ethics than it does for prudential rationality.
In November 1998, juvenile females did not exhibit a clear aggregative structure (Fig.
In the context of biological control, the display of an aggregative response is especially desirable from parasitoids used in inoculative biological control.
The aggregative view has become newly salient, for a great deal of recent attention has been given to the "wisdom of crowds.
Strains exhibiting localized adherence occurred more often in acute diarrhoeal cases than in controls, strains with a diffuse-adherence pattern were found with similar frequency in acute cases, persistent cases, and controls, and strains showing the aggregative pattern were found significantly more often in cases with persistent diarrhoea than in children with acute diarrhoea.
fabrilis shows an aggregative population structure, which is determined by the distance to nearest occupied patch, indicating that spatially correlated habitat quality probably determine its occurrence.
Adapting materials as he sees fit in a process both aggregative and genially deconstructive, Tuttle's practice repays attention, whether deep or superficial.
The researchers will apply hydrocolloidal aggregative formations to selectively separate bioactive components.