| 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 oxides occurring at or near the soil surface, which have developed under conditions of fluctuating water tables. (05 Jan 1998) |
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| concretion |
the formation of stonelike objects within a body organ (e.g., the kidneys) calculus: a hard lump produced by the concretion of mineral salts; found in hollow organs or ducts of the body; "renal calculi can be very painful" compaction: an increase in the density of something coalescence: the union of diverse things into one body or form or group; the growing together of parts
Ãâó: wordnet.princeton.edu/perl/webwn
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| concretion |
A concretion is a compact rock mass usually spherical or disk-shaped and embedded in a host rock of a different composition. Concretions form by precipitation of mineral matter (commonly a carbonate mineral such as calcite, but sometimes an iron oxide or hydroxide such as goethite or sometimes an amorphous or microcrystalline form of silica) about a nucleus such as a piece of shell or bone.
Ãâó: www.msnucleus.org/membership/html/jh/earth/diction...
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| concretion |
A spherical or ellipsoidal nodule formed by accumulation of mineral matter after deposition of sediment.
Ãâó: imnh.isu.edu/digitalatlas/glossary/letter.asp
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| concretion |
a natural clay nodule formed out of solution in soil interstices. Often confused for man-made objects because of their peculiar shapes.
Ãâó: farahsouth.cgu.edu/dictionary/
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| concretion |
A nodular concentration of mineral matter that, during weathering of the enclosing sedimentary rock, commonly is more resistant and freed as more-or-less rounded rocks. See Neuropteris, a Pennsylvanian plant, and Orbiculoidea, an inarticulate brachiopod.
Ãâó: www.kgs.ku.edu/Publications/ancient/vocab.html
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| concretion | the union of diverse things into one body or form or group |
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| concretion | an increase in the density of something |
| concretion | a hard lump produced by the concretion of mineral salts |
| concretion | the formation of stonelike objects within a body organ (e.g., the kidneys) |
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