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pyrolusite
[ pahy-ruh-loo-sahyt, pahy-rol-yuh-sahyt ]
/ ˌpaɪ rəˈlu saɪt, paɪˈrɒl yəˌsaɪt /
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noun
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.
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Words nearby pyrolusite
pyrokinesis, pyroligneous, pyroligneous acid, pyroligneous alcohol, pyrolize, pyrolusite, pyrolyse, pyrolysis, pyromagnetic, pyromancy, pyromania
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use pyrolusite in a sentence
British Dictionary definitions for pyrolusite
pyrolusite
/ (ˌpaɪrəʊˈluːsaɪt) /
noun
a blackish fibrous or soft powdery mineral consisting of manganese dioxide in tetragonal crystalline form. It occurs in association with other manganese ores and is an important source of manganese. Formula: MnO 2
Word Origin for pyrolusite
C19: from pyro- + Greek lousis a washing + -ite 1, from its use in purifying glass
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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