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Dictionary

py•ro•lu•site

Pronunciation: (pī"ru-lOO'sīt, pī-rol'yu-sīt"), [key]
—n.
a common mineral, manganese dioxide, MnO₂, the principal ore of manganese, used in various manufactures, as a decolorizer of brown or green tints in glass, and as a depolarizer in dry-cell batteries.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

pyrolize

pyrolysis

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