pitchblende Hear it!

pitchblende definition

pitch·blende (pic̸h′blend′)

noun

a brown to black, radioactive, massive form of uraninite: pitchblende is the chief ore of uranium and radium

Etymology: calque of Ger pechblende < pech (< L pix), pitch + blende, blende

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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