Definition, Meaning & Synonyms
diatomaceous earth
Noun
/ˌdaɪətoʊˈmeɪʃəs ˈɜrθ/
Definition
A naturally occurring, soft, siliceous sedimentary rock that is easily crumbled into a fine white to off-white powder.
Examples
- The gardener used diatomaceous earth to keep pests away from the plants.
- After filtering water through diatomaceous earth, the water was crystal clear.
- Diatomaceous earth can be used in cosmetics as an exfoliant.
Meaning
Diatomaceous earth is primarily composed of the fossilized remains of tiny aquatic organisms called diatoms. This powder-like substance is known for its many uses, including as a natural pesticide, an abrasive, and in filtration.
Synonyms
- DE
- siliceous earth
- diatomite
