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单词 psilomelane
释义

WordReference Random House Unabridged Dictionary of American English © 2024
psi•lom•e•lane  (sī lomə lān′),USA pronunciation n. 
  1. Mineralogya common mineral consisting of a mixture of pyrolusite and other oxides of manganese, usually found in black, rounded masses: an ore of manganese.
  • Greek psīló(s) bare, smooth + mélan, neuter of mélas black
  • 1825–35

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更新时间:2024/11/10 17:03:33