What does lanthanum mean?

Definitions for lanthanum
ˈlæn θə nəmlan·thanum

Here are all the possible meanings and translations of the word lanthanum.

Princeton's WordNet

  1. lanthanum, La, atomic number 57noun

    a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth

Wiktionary

  1. lanthanumnoun

    A metallic chemical element (symbol La) with an atomic number of 57.

    Etymology: From λανθάνω, because it had gone long undetected in mineral ores.

Webster Dictionary

  1. Lanthanumnoun

    a rare element of the group of the earth metals, allied to aluminium. It occurs in certain rare minerals, as cerite, gadolinite, orthite, etc., and was so named from the difficulty of separating it from cerium, didymium, and other rare elements with which it is usually associated. Atomic weight 138.5. Symbol La

    Etymology: [NL., fr. Gr. lanqa`nein to lie hid, to be concealed.]

Freebase

  1. Lanthanum

    Lanthanum is a chemical element with the symbol La and atomic number 57. Lanthanum is a silvery white metallic element that belongs to group 3 of the periodic table and is the first element of the lanthanide series. It is found in some rare-earth minerals, usually in combination with cerium and other rare earth elements. Lanthanum is a malleable, ductile, and soft metal that oxidizes rapidly when exposed to air. It is produced from the minerals monazite and bastnäsite using a complex multistage extraction process. Lanthanum compounds have numerous applications as catalysts, additives in glass, carbon lighting for studio lighting and projection, ignition elements in lighters and torches, electron cathodes, scintillators, and others. Lanthanum carbonate was approved as a medication against renal failure.

Chambers 20th Century Dictionary

  1. Lanthanum

    lan′tha-num, n. a metal discovered in 1839 in cerite, a hydrated silicate of cerium.—Also Lan′thānium. [Gr. lanthanein, to conceal.]

U.S. National Library of Medicine

  1. Lanthanum

    Lanthanum. The prototypical element in the rare earth family of metals. It has the atomic symbol La, atomic number 57, and atomic weight 138.91. Lanthanide ion is used in experimental biology as a calcium antagonist; lanthanum oxide improves the optical properties of glass.

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Numerology

  1. Chaldean Numerology

    The numerical value of lanthanum in Chaldean Numerology is: 7

  2. Pythagorean Numerology

    The numerical value of lanthanum in Pythagorean Numerology is: 5

Images & Illustrations of lanthanum

  1. lanthanumlanthanumlanthanumlanthanumlanthanum

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    transmitting light; able to be seen through with clarity
    • A. transparent
    • B. victimised
    • C. blistering
    • D. cosmopolitan

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