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3 definitions found
 for Chromium
From The Collaborative International Dictionary of English v.0.48 :

  Chromium \Chro"mi*um\, n. [NL., fr. Gr. ? color.] (Chem.)
     A comparatively rare element occurring most abundantly in the
     mineral chromite. Atomic weight 52.5. Symbol Cr. When
     isolated it is a hard, brittle, grayish white metal, fusible
     with difficulty. Its chief commercial importance is for its
     compounds, as potassium chromate, lead chromate, etc., which
     are brilliantly colored and are used dyeing and calico
     printing. Called also chrome.
     [1913 Webster]

From WordNet (r) 3.0 (2006) :

      n 1: a hard brittle multivalent metallic element; resistant to
           corrosion and tarnishing [syn: chromium, Cr, atomic
           number 24]

From The Elements (07Nov00) :

  Symbol: Cr
  Atomic number: 24
  Atomic weight: 51.996
  Hard silvery transition element. Used in decorative electroplating.
  Discovered in 1797 by Vauquelin.

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