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atomic number 42

Definition:

a polyvalent metallic element that resembles chromium and tungsten in its properties; used to strengthen and harden steel

Class:

substance noun (substance and materials)

Plurals:

atomic number 42's | atomic number 42s

Substance in:

molybdenite

Original source:

Princeton WordNet

Synonyms:

Mo [chemical formula] | molybdenum

Definition references  (+images)

Wikipedia:

Molybdenum | Mo

a Group 6 chemical element with the symbol Mo and atomic number 42. The name is from Neo-Latin Molybdaenum, from Ancient Greek Μόλυβδος molybdos, meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known... (39 of 6316 words, pronunciations, 6 images)

en​.wikipedia​.org​/wiki​/Molybdenum

Britannica Encyclopedia:

molybdenum | Mo [abbreviation] | MoO3 [chemical formula] | NH4 [chemical formula] | MoS2 [chemical formula] | Na2MoO4 [chemical formula]

chemical element, silver-gray refractory metal of Group 6 of the periodic table, used to impart superior strength to steel and other alloys at high ... (24 of 687 words, 5 images)

www​.britannica​.com​/E​Bchecked​/topic​/388573​/molybdenum-Mo

Wiktionary:

molybdenum

A metallic chemical element (symbol Mo) with an atomic number of 42. (12 of 21 words, 1 usage example, 1 image)

en​.wiktionary​.org​/wiki​/molybdenum

Columbia Encyclopedia:

molybdenum | Mo [symbol]

metallic chemical element; atomic number 42; atomic weight 95.94; melting point about 2,617°C; boiling point about 4,612°C; specific gravity 10.22 at ... (21 of 453 words, pronunciation)

www​.infoplease​.com​/ce​6​/sci​/A​0833657​.html

Collins Dictionary:

molybdenum

a very hard ductile silvery-white metallic element occurring principally in molybdenite: used mainly in alloys, especially to harden and strengthen ... (20 of 333 words, 6 usage examples, pronunciation)

www​.collinsdictionary​.com​/dictionary​/english​/molybdenum

American Heritage Dictionary:

molybdenum | Mo [symbol]

A hard, silvery-white metallic element used to toughen alloy steels and soften tungsten alloy. An essential trace element in plant nutrition, it's ... (22 of 80 words, pronunciation)

www​.yourdictionary​.com​/molybdenum

New World Dictionary:

molybdenum | Mo [symbol]

a very hard, lustrous, silver-white metallic chemical element, used in alloys, points for spark plugs, etc.; atomic number, 42 (19 of 71 words, pronunciation)

www​.yourdictionary​.com​/molybdenum

Merriam-Webster:

molybdenum

a metallic element that resembles chromium and tungsten in many properties, is used especially in strengthening and hardening steel, and is a trace ... (23 of 67 words, pronunciation)

www​.merriam-webster​.com​/dictionary​/molybdenum

Oxford Dictionary:

molybdenum | Mo [symbol]

the chemical element of atomic number 42, a brittle silver-grey metal of the transition series, used in some alloy steels (20 of 61 words, pronunciation)

oxforddictionaries​.com​/definition​/english​/molybdenum

Random House Dictionary:

molybdenum | Mo [symbol]

[chemistry] a silver-white metallic element, used as an alloy with iron in making hard, high-speed cutting tools. ; atomic weight: 95.94; atomic ... (22 of 33 words, pronunciation)

dictionary​.infoplease​.com​/molybdenum

Cambridge Dictionary:

molybdenum

a very hard silver-coloured metallic element used especially to make steel stronger (12 of 17 words, pronunciations)

dictionary​.cambridge​.org​/dictionary​/british​/molybdenum

Macmillan British Dictionary:

metal | metals [plural]

[countable/uncountable, chemistry] a hard, usually shiny element that ... | [uncountable] heavy metal (12 of 110 words, 2 definitions, 3 usage examples, pronunciation)

www​.macmillandictionary​.com​/dictionary​/british​/metal

Encarta Dictionary:

molybdenum [symbol] | Mo [symbol]

a very hard silvery metallic element. Use: strengthening steel alloys. Mo (11 of 36 words, pronunciation)

encarta​.msn​.com​/dictionary 1861630854​/definition​.html  [offline]

Page last updated: 2013-06-26

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