- 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
WordReference Random House Unabridged Dictionary of American English © 2026
mo•lyb•de•nite
(mə lib′də nīt′),USA pronunciation n.
- Mineralogya soft, graphitelike mineral, molybdenum sulfide, MoS2, occurring in foliated masses or scales: the principal ore of molybdenum.
- obsolete molybden(a) molybdenum + -ite1 1790–1800
Collins Concise English Dictionary © HarperCollins Publishers::
molybdenite /mɒˈlɪbdɪˌnaɪt/ n
'molybdenite' also found in these entries (note: many are not synonyms or translations):