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molybdenite

[muh-lib-duh-nahyt] /məˈlɪb dəˌnaɪt/
noun
1.
a soft, graphitelike mineral, molybdenum sulfide, MoS 2 , occurring in foliated masses or scales: the principal ore of molybdenum.
Origin of molybdenite
1790-1800
1790-1800; obsolete molybden(a) molybdenum + -ite1
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Based on the Random House Dictionary, © Random House, Inc. 2015.
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British Dictionary definitions for molybdenite

molybdenite

/mɒˈlɪbdɪˌnaɪt/
noun
1.
a soft grey mineral consisting of molybdenum sulphide in hexagonal crystalline form with rhenium as an impurity: the main source of molybdenum and rhenium. Formula: MoS2
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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molybdenite in Science
molybdenite
  (mə-lĭb'də-nīt')   
A soft, lead-gray hexagonal mineral that is the principal ore of molybdenum. It occurs as sheetlike masses in pegmatites and in areas where contact metamorphism has taken place. Chemical formula: MoS2.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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