Molybdenum - Definitions from Dictionary.com

9 results for: Molybdenum

Molybdenum Rod, Sheet, Plate, Foil, Wire, Tube We make Molybdenum parts too www.eaglealloys.com	Sponsored Links

Molybdenum - from $6.65 Dietary Molybdenum, organic quality Same-day, worldwide shipping OrganicPharmacy.org

Molybdenum Products Quality plates, rods, strips, and alloy products. Competitive prices! www.torreyhillstech.com

Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This

mo·lyb·de·num

Audio Help [muh-lib-duh-nuh

m] Pronunciation Key

–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: 1810–20; < NL, alter. of earlier molybdéna < L molybdaena < Gk molýbdaina galena, equiv. to mólybd(os) lead + -aina suffix of appurtenance

]

Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.

Molybdenum Rod, Sheet, Plate, Foil, Wire, Tube We make Molybdenum parts too www.eaglealloys.com	Sponsored Links

Molybdenum - from $6.65 Dietary Molybdenum, organic quality Same-day, worldwide shipping OrganicPharmacy.org

Molybdenum Products Quality plates, rods, strips, and alloy products. Competitive prices! www.torreyhillstech.com

Encyclopædia Britannica, Inc.
Molybdenum

To learn more about Molybdenum visit Britannica.com

Molybdenum 100 mcg - $12 Free Shipping on orders over $40 Enter code FREE at checkout www.ourkidsasd.com	Sponsored Links

Molybdenum metal products All forms of molybdenum metal rod, plate, electrodes, and sheet. molybdenumco.com

American Heritage Dictionary - Cite This Source - Share This

mo·lyb·de·num Audio Help (mə-lĭb'də-nəm) Pronunciation Key
n. Symbol Mo
A hard, silvery-white metallic element used to toughen alloy steels and soften tungsten alloy. An essential trace element in plant nutrition, it is used in fertilizers, dyes, enamels, and reagents. Atomic number 42; atomic weight 95.94; melting point 2,617°C; boiling point 4,612°C; specific gravity 10.22 (at 20°C); valence 2, 3, 4, 5, 6. See Table at element.

[New Latin, from earlier molybdena, lead ore, from Latin molybdaena, galena, from Greek molubdaina, from molubdos, lead.]

(Download Now or Buy the Book)

The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

Online Etymology Dictionary - Cite This Source - Share This
molybdenum

metallic element, 1816, from Gk. molybdos "lead," related to L. plumbum "lead," and like it probably borrowed from a lost Mediterranean language, perhaps Iberian. The element so called because of its resemblance to lead ore.

WordNet - Cite This Source - Share This

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

The American Heritage Science Dictionary - Cite This Source - Share This

molybdenum Audio Help (mə-lĭb'də-nəm) Pronunciation Key
Symbol 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 95.94; melting point 2,617°C; boiling point 4,612°C; specific gravity 10.22 (at 20°C); valence 2, 3, 4, 5, 6. See Periodic Table.

The American Heritage® Science Dictionary
Copyright © 2002 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.

American Heritage Stedman's Medical Dictionary - Cite This Source - Share This

molybdenum mo·lyb·de·num (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; atomic weight 95.94; melting point 2,623°C; boiling point 4,639°C; specific gravity 10.22 (at 20°C); valence 2, 3, 4, 5, 6.

Merriam-Webster's Medical Dictionary - Cite This Source - Share This
Main Entry: mo·lyb·de·num
Pronunciation: -d&-n&m
Function: noun
: a metallic element that resembles chromium and tungsten inmany properties, is used especially in strengthening and hardening steel, and is a trace element in plant and animal metabolism —symbol Mo; —see ELEMENT table

Webster's Revised Unabridged Dictionary - Cite This Source - Share This

Molybdenum

Mol`yb*de"num\, n. [NL.: cf. F. molybd[`e]ne. See Molybdena.] (Chem.) A rare element of the chromium group, occurring in nature in the minerals molybdenite and wulfenite, and when reduced obtained as a hard, silver-white, difficulty fusible metal. Symbol Mo. Atomic weight 95.9.

On-line Medical Dictionary - Cite This Source - Share This

molybdenum

molybdenum: in CancerWEB's On-line Medical Dictionary

Browse Nearby Entries: