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Gravel
Gravel is a loose aggregation of rock fragments. Gravel is classified by particle size range and includes size classes from granule- to boulder-sized fragments. In the Udden-Wentworth scale gravel is categorized into granular gravel (2 to 4 mm or 0.079 to 0.157 in) and pebble gravel (4 to 64 mm or 0.2 to 2.5 in). ISO 14688 grades gravels as fine, medium, and coarse with ranges 2 mm to 6.3 mm to 20 mm to 63 mm. One cubic metre of gravel typically weighs about 1,800 kg (or a cubic yard weighs about 3,000 pounds).
Gravel is an important commercial product, with a number of applications. Many roadways are surfaced with gravel, especially in rural areas where there is little traffic. Globally, far more roads are surfaced with gravel than with concrete or asphalt; Russia alone has over 400,000 km (250,000 mi) of gravel roads. Both sand and small gravel are also important for the manufacture of concrete.
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Gravel (noun)
Small fragments of rock, used for laying on the beds of roads and railways, and as ballast.
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Gravel (noun)
A type or grade of small rocks, differentiated by mineral type, size range, or other characteristics.
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Gravel (noun)
A particle from 2 to 64 mm in diameter, following the Wentworth scale
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Gravel (noun)
Kidney stones; a deposit of small calculous concretions in the kidneys and the urinary or gall bladder; also, the disease of which they are a symptom.
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Gravel (verb)
To apply a layer of gravel to the surface of a road, etc.
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Gravel (verb)
To puzzle or annoy
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Gravel (verb)
To run (as a ship) upon the gravel or beach; to run aground; to cause to stick fast in gravel or sand.
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Gravel (verb)
To check or stop; to embarrass; to perplex.
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Gravel (verb)
To hurt or lame (a horse) by gravel lodged between the shoe and foot.
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Aggregate (noun)
A mass, assemblage, or sum of particulars; something consisting of elements but considered as a whole.
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Aggregate (noun)
A mass formed by the union of homogeneous particles; – in distinction from a compound, formed by the union of heterogeneous particles.
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Aggregate (noun)
A set collection of objects.
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Aggregate (noun)
The full chromatic scale of twelve equal tempered pitches.
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Aggregate (noun)
The total score in a set of games between teams or competitors, usually the combination of the home and away scores
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Aggregate (noun)
Crushed stone, crushed slag or water-worn gravel used for surfacing a built-up roof system.
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Aggregate (noun)
Solid particles of low aspect ratio added to a composite material, as distinguished from the matrix and any fibers or reinforcements, especially the gravel and sand added to concrete.
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Aggregate (noun)
Any of the five attributes that constitute the sentient being.
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Aggregate (adjective)
Formed by a collection of particulars into a whole mass or sum; collective; combined; added up.
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Aggregate (adjective)
Consisting or formed of smaller objects or parts.
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Aggregate (adjective)
Formed into clusters or groups of lobules.
“aggregate glands”
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Aggregate (adjective)
Composed of several florets within a common involucre, as in the daisy; or of several carpels formed from one flower, as in the raspberry.
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Aggregate (adjective)
Having the several component parts adherent to each other only to such a degree as to be separable by mechanical means.
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Aggregate (adjective)
United into a common organized mass; said of certain compound animals.
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Aggregate (verb)
To bring together; to collect into a mass or sum.
“The aggregated soil.”
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Aggregate (verb)
To add or unite (e.g. a person), to an association.
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Aggregate (verb)
To amount in the aggregate to.
“There are ten loads, aggregating five hundred bushels.”
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Aggregate (noun)
a whole formed by combining several separate elements
“the council was an aggregate of three regional assemblies”
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Aggregate (noun)
the total score of a player or team in a fixture comprising more than one game or round
“the result put the sides level on aggregate”
“he set the pace with a one-over-par aggregate of 151”
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Aggregate (noun)
a material or structure formed from a mass of fragments or particles loosely compacted together
“the specimen is an aggregate of rock and mineral fragments”
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Aggregate (noun)
pieces of broken or crushed stone or gravel used to make concrete and in building
“use aggregate for the first layer when filling the trench”
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Aggregate (adjective)
formed or calculated by the combination of several separate elements; total
“the aggregate amount of grants made”
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Aggregate (adjective)
(of a group of species) comprising several very similar species formerly regarded as a single species.
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Aggregate (adjective)
denoting the total supply or demand for goods and services in an economy at a particular time.
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Aggregate (verb)
form or group into a class or cluster
“socio-occupational groups aggregate men sharing similar kinds of occupation”
“the butterflies aggregate in dense groups”
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Aggregate (verb)
collect (related items of content) so as to display or link to them
“tools that aggregate data from all of the security devices are a good first step”