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Definition of Diatomaceous earth
1. Noun. A light soil consisting of siliceous diatom remains and often used as a filtering material.
Definition of Diatomaceous earth
1. Noun. A light soil consisting of siliceous diatom remains and often used as a filtering material or microabrasive. ¹
¹ Source: wiktionary.com
Medical Definition of Diatomaceous earth
1. A type of silica-rich dirt which is soft, fine-grained, porous, light-coloured, and composed of the skeletons of diatoms (one-celled marine organisms with skeletons based on silicon). It is used as a filter. (09 Oct 1997)