Dictionary

pyrolusite

noun py·ro·lu·site \ˌpī-rō-ˈlü-ˌsīt\

Definition of PYROLUSITE

:  a soft black or steel-gray mineral of metallic luster consisting of manganese dioxide that is the most important ore of manganese

Origin of PYROLUSITE

German Pyrolusit, from Greek pyr- + lousis washing, from louein to wash — more at lye
First Known Use: 1828

Browse

Next Word in the Dictionary: pyrolysatePrevious Word in the Dictionary: pyroluminescenceAll Words Near: pyrolusite
July 02, 2015
apprehension Hear it
comprehension or the fear of future evil
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears