molybdenum

noun
mo·​lyb·​de·​num | \ mə-ˈlib-də-nəm How to pronounce molybdenum (audio) \

Definition of molybdenum

: a metallic element that resembles chromium and tungsten in many properties, is used especially in strengthening and hardening steel, and is a trace element in plant and animal metabolism — see Chemical Elements Table

Examples of molybdenum in a Sentence

Recent Examples on the Web The Phoenix based mining company Freeport-McMoRan operates the copper/molybdenum mine in Baghdad and owns all the homes and commercial buildings in town, KPHO says. CBS News, 28 May 2021 But over the ages, steel makers learned that a pinch of cobalt or a dash of chromium—or a smidge of more exotic compounds such as vanadium or molybdenum—changes a steel’s character. T. Edward Nickens, Field & Stream, 5 Mar. 2021 New for 2021, Spyderco has introduced a number of their folders including the Endela, with K390 Microclean, a high performance blade steel made by Böhler-Uddeholm that’s enriched with vanadium, molybdenum and cobalt. Matt Foster, Outdoor Life, 24 Feb. 2021 Near Bailly, 20% of samples showed elevated levels of thalium, 11.9% for arsenic, and molybdenum, while Schahfer saw 37% of samples were high for Sulfate, 32% for boron and 10% for arsenic. Meredith Colias-pete, chicagotribune.com, 12 Dec. 2020 Developers have proposed an open-pit copper, gold and molybdenum mine in southwest Alaska that has faced fierce opposition from Bristol Bay fishermen, many of whom are from Washington, who fear that salmon would be put at risk. oregonlive, 28 Nov. 2020 Groundwater testing at Plants Bowen and Arkwright have revealed levels of cobalt and molybdenum, toxins linked to higher risk of liver damage and other health ailments, that exceed state groundwater protection standards. ProPublica, 24 Nov. 2020 Just over the hill from the Keystone-Wallace mine, the Rio Algom Uranium Mill, which operated from 1972 to 1988, has leached contaminates into the groundwater, including uranium, molybdenum, selenium and arsenic. Zak Podmore, The Salt Lake Tribune, 21 Nov. 2020 Graphite, molybdenum and other compounds are used for this. Paul Weissler, Popular Mechanics, 31 Aug. 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'molybdenum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of molybdenum

1794, in the meaning defined above

History and Etymology for molybdenum

New Latin, from molybdena, a lead ore, molybdenite, molybdenum, from Latin molybdaena galena, from Greek molybdaina, from molybdos lead

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Time Traveler for molybdenum

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The first known use of molybdenum was in 1794

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Dictionary Entries Near molybdenum

molybdenite

molybdenum

molybdenum blue

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Statistics for molybdenum

Last Updated

3 Jun 2021

Cite this Entry

“Molybdenum.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/molybdenum. Accessed 1 Aug. 2021.

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More Definitions for molybdenum

molybdenum

noun
mo·​lyb·​de·​num | \ mə-ˈlib-də-nəm How to pronounce molybdenum (audio) \

Kids Definition of molybdenum

: a white metallic chemical element used in some steel to give greater strength and hardness

molybdenum

noun
mo·​lyb·​de·​num | \ -də-nəm How to pronounce molybdenum (audio) \

Medical Definition of molybdenum

: a metallic element that resembles chromium and tungsten in many properties, is used especially in strengthening and hardening steel, and is a trace element in plant and animal metabolism symbol Mo — see Chemical Elements Table

More from Merriam-Webster on molybdenum

Britannica.com: Encyclopedia article about molybdenum

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