Diatomite

//daɪˈæt.əˌmaɪt// noun

Definitions

Noun
  1. 1
    A fine, powdery earth formed from the skeletons of diatoms countable, uncountable
  2. 2
    a light soil consisting of siliceous diatom remains and often used as a filtering material wordnet

Etymology

From diatom + -ite.

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Unscramble this word: diatomite