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5 definitions found

From: DICT.TW English-Chinese Dictionary 英漢字典

 man·ga·nese /ˈmæŋgəˌniz, ˌnis/

From: DICT.TW English-Chinese Medical Dictionary 英漢醫學字典

 man·ga·nese /ˈmæŋgəˌnɪz, ˌnɪs/ 名詞

From: Webster's Revised Unabridged Dictionary (1913)

 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.

From: WordNet (r) 2.0

      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]

From: Elements database 20001107

 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.