molybdenite

[ muh-lib-duh-nahyt ]
/ məˈlɪb dəˌnaɪt /

noun

a soft, graphitelike mineral, molybdenum sulfide, MoS2, occurring in foliated masses or scales: the principal ore of molybdenum.

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Origin of molybdenite

1790–1800; obsolete molybden(a)molybdenum + -ite1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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British Dictionary definitions for molybdenite

molybdenite
/ (mɒˈlɪbdɪˌnaɪt) /

noun

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: MoS 2
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

Scientific definitions for molybdenite

molybdenite
[ mə-lĭbdə-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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.