infusorial earth
noun Date: 1868 kieselguhr

New Collegiate Dictionary. 2001.

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  • Infusorial earth — Infusorial In fu*so ri*al, a. (Zo[ o]l.) Belonging to the Infusoria; composed of, or containing, Infusoria; as, infusorial earth. [1913 Webster] {Infusorial earth} (Geol.), a deposit of fine, usually white, siliceous material, composed mainly of… …   The Collaborative International Dictionary of English

  • infusorial earth — diatomaceous earth di a*to*ma ceous earth (Geol.), a deposit of fine, usually white, siliceous material, composed mainly of the shells of the microscopic plants called diatoms; also called {infusorial earth}, {kieselguhr}, and {diatomite}. It is… …   The Collaborative International Dictionary of English

  • infusorial earth — n. = KIESELGUHR. Etymology: mod.L infusoria, formerly a class of protozoa found in decaying animal or vegetable matter (as INFUSE) * * * noun : kieselguhr * * * infusorial earth noun Diatomite • • • Main Entry: ↑infusoria …   Useful english dictionary

  • infusorial earth — 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… …   Medical dictionary

  • Infusorial — In fu*so ri*al, a. (Zo[ o]l.) Belonging to the Infusoria; composed of, or containing, Infusoria; as, infusorial earth. [1913 Webster] {Infusorial earth} (Geol.), a deposit of fine, usually white, siliceous material, composed mainly of the shells… …   The Collaborative International Dictionary of English

  • infusorial — /in fyoo sawr ee euhl, sohr /, adj. pertaining to, containing, or consisting of infusorians: infusorial earth. [1840 50; INFUSORI(A) + AL1] * * * …   Universalium

  • infusorial — in•fu•so•ri•al [[t]ˌɪn fyʊˈsɔr i əl, ˈsoʊr [/t]] adj. pertaining to, containing, or consisting of infusorians: infusorial earth[/ex] • Etymology: 1840–50 …   From formal English to slang

  • infusorial — /ɪnfjuˈzɔriəl/ (say infyooh zawreeuhl) adjective containing or consisting of infusorians: infusorial earth …   Australian English dictionary

  • diatomaceous earth — Infusorial In fu*so ri*al, a. (Zo[ o]l.) Belonging to the Infusoria; composed of, or containing, Infusoria; as, infusorial earth. [1913 Webster] {Infusorial earth} (Geol.), a deposit of fine, usually white, siliceous material, composed mainly of… …   The Collaborative International Dictionary of English

  • diatomaceous earth — di a*to*ma ceous earth (Geol.), a deposit of fine, usually white, siliceous material, composed mainly of the shells of the microscopic plants called diatoms; also called {infusorial earth}, {kieselguhr}, and {diatomite}. It is used in polishing… …   The Collaborative International Dictionary of English

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