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Meaning of PALLADIUM

Pronunciation:  pu'leydeeum

WordNet Dictionary
[n]  a sliver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry

PALLADIUM is a 9 letter word that starts with P.


 Synonyms: atomic number 46, Pd
 See Also: metal, metallic element



Webster's 1913 Dictionary
  1. \Pal*la"di*um\, n. [L., fr. Gr. ?, fr. ?, ?, Pallas.]
    1. (Gr. Antiq.) Any statue of the goddess Pallas; esp., the
       famous statue on the preservation of which depended the
       safety of ancient Troy.
    2. Hence: That which affords effectual protection or
       security; a sateguard; as, the trial by jury is the
       palladium of our civil rights. --Blackstone.
  2. \Pal*la"di*um\, n. [NL.] (Chem.)
    A rare metallic element of the light platinum group, found
    native, and also alloyed with platinum and gold. It is a
    silver-white metal resembling platinum, and like it permanent
    and untarnished in the air, but is more easily fusible. It is
    unique in its power of occluding hydrogen, which it does to
    the extent of nearly a thousand volumes, forming the alloy
    {Pd2H}. It is used for graduated circles and verniers, for
    plating certain silver goods, and somewhat in dentistry. It
    was so named in 1804 by Wollaston from the asteroid Pallas,
    which was discovered in 1802. Symbol Pd. Atomic weight,
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