Pyrolusite Definition

pīrō-lo͝osīt
noun
A very soft, black, tetragonal mineral, MnO2, an ore of manganese used in making glass, paint, etc.; manganese dioxide.
Webster's New World

Other Word Forms of Pyrolusite

Noun

Singular:
pyrolusite
Plural:
pyrolusites

Origin of Pyrolusite

  • German Pyrolusit Greek puro- pyro- Greek lousis a washing (from louein to wash leu(ə)- in Indo-European roots)

    From American Heritage Dictionary of the English Language, 5th Edition

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pyrolusite