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molybdenum Definition

mo·lyb·de·num (mə libdə nəm)

noun

a very hard, lustrous, silver-white metallic chemical element, used in alloys, points for spark plugs, etc.: symbol, Mo; at. no., 42

Etymology: ModL: so named (1781) by K. W. Scheele (see scheelite) after its isolation by P. J. Hjelm (1746-1813), Swed chemist < molybdaena, molybdenite, term used because of resemblance to lead ore < L molybdaena, lead, galena < Gr molybdaina, piece of lead < molybdos, lead

molybdenum Usage Examples

Converse of object

  • contain: The deposit also contains minor molybdenum occurring locally as the sulfide, molybdenite ( not found here ).
  • produce: Inter Moly produces molybdenum for use in steel production in Greenland.
  • include: Grade 21 Titanium alloy including 15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon.

Modifies a noun

  • disulfide: Tungsten disulfide is a lubricant for temperatures above the application range of molybdenum disulfide.
  • concentration: The higher molybdenum concentrations reported for the soya milk products are not unexpected.
  • steel: Oxygen can be stored under pressure in cylinders made of molybdenum steel.
  • concentrate: Less than 12 months after this JV was signed, this plant is now being commissioned and first molybdenum concentrates are being produced.
  • deposit: Monterrico is undertaking a Bankable Feasibility Study of its wholly owned Rio Blanco copper molybdenum deposit in northern Peru.
  • target: The x-ray source is fitted with continuously rated, high speed rotating molybdenum target.

Noun used with modifier

  • %: Grade 21 Titanium alloy including 15 % molybdenum, 3 % aluminum, 2.7 % niobium, 0.25 % silicon.
  • chrome: Chassis is a space frame of light wall chrome molybdenum tube.
  • chromium: The Toda flywheel is marketed as ' ultra light ' and is manufactured from chromium molybdenum steel for the highest quality.
  • copper: Monterrico is undertaking a Bankable Feasibility Study of its wholly owned Rio Blanco copper molybdenum deposit in northern Peru.
  • element: We are interested in the essential trace element molybdenum, which is required as a component of the cofactors of various redox enzymes.

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