Concretion

A concretion is a hard, compact mass of matter formed by the precipitation of mineral cement within the spaces between particles, and is found in sedimentary rock or soil. Concretions are often ovoid or spherical in shape, although irregular shapes also occur. The word `concretion` is derived from the Latin con meaning `together` and crescere ...
Found on http://en.wikipedia.org/wiki/Concretion

concretion

Aggregate composed of a mass of small crystals that become cemented together, resulting in a rounded, odd form.
Found on http://www.encyclo.co.uk/local/22291

Concretion

• (n.) The process of concreting; the process of uniting or of becoming united, as particles of matter into a mass; solidification. • (n.) A rounded mass or nodule produced by an aggregation of the material around a center; as, the calcareous concretions common in beds of clay. • (n.) A mass or nodule of solid matter formed by growin...
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concretion

(a) A hard, compact mass or aggregate of mineral matter, normally subspherical, but commonly oblate, disk-shaped, or irregular with odd or fantastic outlines; formed by precipitation from aqueous solution about a nucleus or center, such as a leaf, shell, bone, or fossil, in the pores of a sedimentary or fragmental volcanic rock, and usually of a co...
Found on http://www.encyclo.co.uk/local/22047

concretion

(from the article `sedimentary rock`) Local cementation may result in concretions of calcite, pyrite, barite, and other minerals. These can range from sand crystals or barite roses to ...
Found on http://www.britannica.com/eb/a-z/c/125

concretion

(kәn-kre´shәn) a calculus or hard inorganic mass in a natural cavity or in tissue. abnormal union of adjacent parts. the process of becoming harder or more solid.
Found on http://www.encyclo.co.uk/local/21001

Concretion

(Lat. concresco, to grow together) A uniting or growing together. -- V.F. Santayana calls universals 'concretions of discourse.' (Life of Reason, vol. I (Reason in Common Sense)).
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concretion

1. <chemistry> The act or process of making or becoming solid. ... 2. <ecology> A localised concentration of chemical compounds, (for example, calcium carbonate and iron oxide) in the form of a grain or nodule of varying size, shape, hardness and colour, concretions of significance in hydric soils are usually iron oxides and manganese o...
Found on http://www.encyclo.co.uk/local/20973

concretion

noun the formation of stonelike objects within a body organ (e.g., the kidneys)
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Concretion

Con·cre'tion noun [ Latin concretio .] 1. The process of concreting; the process of uniting or of becoming united, as particles of matter into a mass; solidification. 2. A mass or nodule of solid matter formed by growing together, by congelation, condensation, coagulation, indura...
Found on http://www.encyclo.co.uk/webster/C/129

concretion

A compact mass of mineral matter, usually spherical or disk-like in shape and embedded in a host rock of different composition. They form by precipitation of mineral matter about a nucleus such as a leaf, trilobite exoskelton or a piece of shell of bone.
Found on http://www.fossilmall.com/Science/Glossary.htm

concretion

A compact mass of mineral matter, usually spherical or disk-like in shape and embedded in a host rock of different composition. They form by precipitation of mineral matter about a nucleus such as a leaf, or a piece of shell of bone.
Found on https://www.encyclo.co.uk/local/22327

concretion

A hard, rounded mass, commonly of silica, calcite, dolomite, iron oxide, pyrite, or gypsum, that formed within a rock from the precipitation of these minerals around a nucleus, such as a leaf, bone, shell, or fossil, and ranging in diameter from centimeters to meters.
Found on http://www.scientificpsychic.com/etc/geology-glossary.html

Concretion

A spherical or ellipsoidal nodule formed byaccumulation of mineral matter after deposition of sediment.
Found on http://www.evcforum.net/WebPages/Glossary_Geology.html

concretion

a spheroidal, ellipsoidal (commonly oblate) or irregularly shaped mass, typically developed within sediments by localized deposition around a nucleus.
Found on https://www.encyclo.co.uk/local/20132

Concretion

Concretion refers to an accumulation of mineral matter when mineral particles become cemented together into an orderly, rounded form.
Found on http://www.probertencyclopaedia.com/browse/HC.HTM

concretion

concretion, mass or nodule of mineral matter, usually oval or nearly spherical in shape, and occurring in sedimentary rock. It is formed by the accumulation of mineral matter in the pore spaces of the sediment, usually around a fossil or fossil fragment acting as a nucleus. Most concretions are very...
Found on http://www.infoplease.com/ce6/sci/A0813172.html

Concretion

Irregular or rounded mass formed by the precipitation of a new mineral within a sedimentary rock. Rounded forms are called nodules.
Found on https://www.encyclo.co.uk/local/20501

concretion

n. A hard, rounded mass, commonly of silica, calcite, dolomite, iron oxide, pyrite, or gypsum, that formed within a rock from the precipitation of these minerals around a nucleus, such as a leaf, bone, shell, or fossil, and ranging in diameter from centimeters to meters.
Found on http://www.ucmp.berkeley.edu/glossary/gloss2geol.html

concretion

n. A hard, rounded mass, commonly of silica, calcite, dolomite, iron oxide, pyrite, or gypsum, that formed within a rock from the precipitation of these minerals around a nucleus, such as a leaf, bone, shell, or fossil, and ranging in diameter from centimeters to meters.
Found on http://www.ucmp.berkeley.edu/glossary/glossary_2.html

Concretion

Stone-like encrusted clump/conglomerate created by the natural elements around an artefact, often rusted iron. If a concretion around an iron object is cracked underwater, black 'smoke' pours out. This is not good, because without the protective concretion, the remaining iron is exposed to further rusting. Concretions should never be cracked, just ...
Found on http://www.abc.se/~pa/uwa/glossary.htm

concretion

Type: Term Pronunciation: kon-krē′shŭn Definitions: 1. The formation of solid material by aggregation of discrete units or particles.
Found on http://www.medilexicon.com/medicaldictionary.php?t=19641

Concretion

volume of sedimentary rock in which a mineral cement fills the porosity (i.e. the spaces between the sediment grains).
Found on http://en.wikipedia.org/wiki/Glossary_of_geology

concretion

[n] - the formation of stonelike objects within a body organ (e.g., the kidneys)
Found on http://www.webdictionary.co.uk/definition.php?query=concretion
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