diatomaceous earth(redirected from Diatomaceaous earth)
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A light-colored porous rock composed of the shells of diatoms.
1. (Geological Science) an unconsolidated form of diatomite. Also called: kieselguhr
2. (Minerals) an unconsolidated form of diatomite. Also called: kieselguhr
a fine siliceous earth composed chiefly of the cell walls of diatoms and used in filtration. Also called di•at•o•mite (daɪˈæt əˌmaɪt)
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|Noun||1.||diatomaceous earth - a light soil consisting of siliceous diatom remains and often used as a filtering material|
filter - device that removes something from whatever passes through it