Diatomaceous earth

{
  "id": "MLC-T-ENV-007882",
  "term": "Diatomaceous earth",
  "field": "Environment",
  "term_source": "Diatomaceous Earth",
  "definition": "1. A fine, siliceous (made of silica) \"earth\" composed mainly of the skeletal remains of diatoms, a type of free-floating, microscopic plant found in the ocean.\n\n2. A chalk-like material (fossilized diatoms) used to filter out solid waste in wastewater treatment plants; also used as an active ingredient in some powdered pesticides.",
  "subject": "Water",
  "references": [
    "Drinking Water Technical & Legal Terms",
    "Terms of Environment"
  ],
  "url": "https://mlchart.com/terminology/environment/diatomaceous-earth/"
}