man·ga·nese /ˈmæŋgəˌniz, ˌnis/
  錳[金屬元素]
  man·ga·nese /ˈmæŋgəˌnɪz, ˌnɪs/ 名詞
  錳
  Man·ga·nese n.  Chem. An element obtained by reduction of its oxide, as a hard, grayish white metal, fusible with difficulty (melting point 1244° C), but easily oxidized.  Its ores occur abundantly in nature as the minerals pyrolusite, manganite, etc.  Symbol Mn.  Atomic number 25; Atomic weight 54.938 [C=12.011].
  Note: ☞ An alloy of manganese with iron (called ferromanganese) is used to increase the density and hardness of steel.
  Black oxide of manganese, Manganese dioxide or Manganese peroxide, or Black manganese Chem., a heavy black powder MnO2, occurring native as the mineral pyrolusite, and valuable as a strong oxidizer; -- called also familiarly manganese. It colors glass violet, and is used as a decolorizer to remove the green tint of impure glass.
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  manganese
       n : a hard brittle gray polyvalent metallic element that
           resembles iron but is not magnetic; used in making steel;
           occurs in many minerals [syn: Mn, atomic number 25]
  manganese
  Symbol: Mn
  Atomic number: 25
  Atomic weight: 54.938
  Grey brittle metallic transition element. Rather electropositive, combines
  with some non-metals when heated. Discovered in 1774 by Scheele.