| infusorial | <zoology> Belonging to the Infusoria; composed of, or containing, Infusoria; as, infusorial earth. <geology> Infusorial earth, a deposit of fine, usually white, siliceous material, composed mainly of the shells of the microscopic plants called diatoms. It is used in polishing powder, and in the manufacture of dynamite. Source: Websters Dictionary (01 Mar 1998) |
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| infusorial earth |
Chalk-like gray or white silicon, composed of fossilized remains of marine life, which is used for thermal insulation for steam piping, paint extenders, scouring powders, filters, etc. Also called Tripoli or Diatomaceous Earth or Diatomaceous Silica.
출처: www.peakagents.ca/glossary/i4.htm
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| infusorial e. |
a silicon-rich earth composed mostly of fragments of diatoms; by boiling with dilute hydrochloric acid, washing, and calcining, it can be so purified as to be a very pure form of silica (terra silicea purificata). It is often mixed with clay and used in various industries. See also diatomite. Called also diatomaceous e.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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