molybdenum

[ muh-lib-duh-nuhm ]

/ məˈlɪb də nəm /

noun Chemistry.

a silver-white metallic element, used as an alloy with iron in making hard, high-speed cutting tools. Symbol: Mo; atomic weight: 95.94; atomic number: 42; specific gravity: 10.2.

Origin of molybdenum

1810–20; <New Latin, alteration of earlier molybdēna<Latin molybdaena<Greek molýbdaina galena, equivalent to mólybd(os) lead + -aina suffix of appurtenance

Words nearby molybdenum

molybdate, molybdate orange, molybdenite, molybdenosis, molybdenous, molybdenum, molybdenum disulfide, molybdenum trioxide, molybdic, molybdous, mom

Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for molybdenum

Molybdenum high-speed steel is more expensive than tungsten high-speed steel, but is said to wear better.
The New Gresham Encyclopedia. Vol. 1 Part 1|Various
Several metallic compounds possess a blue colour; especially those of iron, cobalt, and molybdenum.
A Dictionary of Arts, Manufactures and Mines|Andrew Ure
Production of molybdenum in this country practically began in 1914.
The Economic Aspect of Geology|C. K. Leith
Molybdenum blue is a combination of this metal, and oxide of tin or phosphate of lime.
A Dictionary of Arts, Manufactures and Mines|Andrew Ure

(a.) Molybdenum (Mo) occurs in the metallic state; also combined with sulphur, or as molybdic acid combined with lead.
A System of Instruction in the Practical Use of the Blowpipe|Anonymous

British Dictionary definitions for molybdenum

molybdenum

/ (mɒˈlɪbdɪnəm) /

noun

a very hard ductile silvery-white metallic element occurring principally in molybdenite: used mainly in alloys, esp to harden and strengthen steels. Symbol: Mo; atomic no: 42; atomic wt: 95.94; valency: 2–6; relative density: 10.22; melting pt: 2623°C; boiling pt: 4639°C

Word Origin for molybdenum

C19: from New Latin, from Latin molybdaena galena, from Greek molubdaina, from molubdos lead

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

Medical definitions for molybdenum

molybdenum

[ mə-lĭb′də-nəm ]

n. Symbol Mo

A hard metallic element that is an essential trace element in plant and animal nutrition. Atomic number 42.

Scientific definitions for molybdenum

molybdenum

[ mə-lĭb′də-nəm ]

Mo

A hard, silvery-white metallic element that resists corrosion and retains its strength at high temperatures. It is used to harden and toughen steel and to make high-temperature wiring. Molybdenum is an essential trace element in plant metabolism. Atomic number 42; atomic weight 95.96; melting point 2,623°C; boiling point 4,639°C; specific gravity 10.22 (at 20°C); valence 2, 3, 4, 5, 6. See Periodic Table.

单词	molybdenum
释义	molybdenum [ muh-lib-duh-nuhm ] / məˈlɪb də nəm / noun Chemistry. a silver-white metallic element, used as an alloy with iron in making hard, high-speed cutting tools. Symbol: Mo; atomic weight: 95.94; atomic number: 42; specific gravity: 10.2. Origin of molybdenum 1810–20; <New Latin, alteration of earlier molybdēna<Latin molybdaena<Greek molýbdaina galena, equivalent to mólybd(os) lead + -aina suffix of appurtenance Words nearby molybdenum molybdate, molybdate orange, molybdenite, molybdenosis, molybdenous, molybdenum, molybdenum disulfide, molybdenum trioxide, molybdic, molybdous, mom Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 Example sentences from the Web for molybdenum Molybdenum high-speed steel is more expensive than tungsten high-speed steel, but is said to wear better. The New Gresham Encyclopedia. Vol. 1 Part 1\|Various Several metallic compounds possess a blue colour; especially those of iron, cobalt, and molybdenum. A Dictionary of Arts, Manufactures and Mines\|Andrew Ure Production of molybdenum in this country practically began in 1914. The Economic Aspect of Geology\|C. K. Leith Molybdenum blue is a combination of this metal, and oxide of tin or phosphate of lime. A Dictionary of Arts, Manufactures and Mines\|Andrew Ure (a.) Molybdenum (Mo) occurs in the metallic state; also combined with sulphur, or as molybdic acid combined with lead. A System of Instruction in the Practical Use of the Blowpipe\|Anonymous British Dictionary definitions for molybdenum molybdenum / (mɒˈlɪbdɪnəm) / noun a very hard ductile silvery-white metallic element occurring principally in molybdenite: used mainly in alloys, esp to harden and strengthen steels. Symbol: Mo; atomic no: 42; atomic wt: 95.94; valency: 2–6; relative density: 10.22; melting pt: 2623°C; boiling pt: 4639°C Word Origin for molybdenum C19: from New Latin, from Latin molybdaena galena, from Greek molubdaina, from molubdos lead 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 Medical definitions for molybdenum molybdenum [ mə-lĭb′də-nəm ] n. Symbol Mo A hard metallic element that is an essential trace element in plant and animal nutrition. Atomic number 42. The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company. Scientific definitions for molybdenum molybdenum [ mə-lĭb′də-nəm ] Mo A hard, silvery-white metallic element that resists corrosion and retains its strength at high temperatures. It is used to harden and toughen steel and to make high-temperature wiring. Molybdenum is an essential trace element in plant metabolism. Atomic number 42; atomic weight 95.96; melting point 2,623°C; boiling point 4,639°C; specific gravity 10.22 (at 20°C); valence 2, 3, 4, 5, 6. See Periodic Table. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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