diatomaceous earth

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diatomaceous earth

n.
A light-colored porous rock composed of the shells of diatoms.

diatomaceous earth

n
1. (Geological Science) an unconsolidated form of diatomite. Also called: kieselguhr
2. (Minerals) an unconsolidated form of diatomite. Also called: kieselguhr

di′atoma′ceous earth′


n.
a fine siliceous earth composed chiefly of the cell walls of diatoms and used in filtration. Also called di•at•o•mite (daɪˈæt əˌmaɪt)
[1880–85]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.diatomaceous earth - a light soil consisting of siliceous diatom remains and often used as a filtering materialdiatomaceous 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
earth, ground - the loose soft material that makes up a large part of the land surface; "they dug into the earth outside the church"