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 ?
In the first stage, we run real activity-based earnings management (RM_Proxy) and corporate governance individually (B_SCALE,B_MEET, OUTSIDE, O_ACTIVITY, and O_EXPERT) or aggregately (CORP_INDEX), where we control for firm size (SIZE) and size dummy (SIZE DUMMY) (14).
Finally, the author regressed media expenditure both aggregately (mass media expenditure) and individually (e.g., newspapers, books, cable ...).
aggregately at the outset and not after the agency has committed itself
Consumers have shown disregard for some of these economic arguments, especially when aggregately aggravated.
Aggregately, these considerations lead us to predict the following:
Bartholomew marvels at the ability of chance events, when viewed aggregately, to exhibit remarkable patterns.
Recent statistics shows that as of 2006, on France's stock market index CAC40 (the French equivalent of Dow Jones), aggregately 46.2% of French corporate ownership is non-resident.
However, compared to mortality, relatively little analysis has been undertaken of how morbidity has changed both aggregately and by individual disease category.
Data on the actual number of all health care workers in South Dakota is not aggregately collected by any single agency.
However, conflating dispositions with relatively immutable personality traits is based on troublesome assumptions that good teachers, whatever their context or discipline, should all possess an identifiable set of specific personality traits, and that all students, themselves aggregately representing the entire spectrum of known personality traits, will learn from teachers who homogenously possess that one limited set.
Including Asian, Hispanic, Somali, American Indian, and West African students, racial minorities aggregately comprise over 70% of the student population in 2007.

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