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词汇 psilomelane
释义

Definition of psilomelane in English:

psilomelane

noun ˌsʌɪlə(ʊ)məˈleɪn
Mineralogy
  • A hard black ore of manganese which consists of a mechanical mixture of manganese oxides and hydroxides, usually also containing barium and other metals.

Origin

Mid 19th century. From psilo- + ancient Greek μέλαν, neuter of μέλας black, after German Psilomelan, itself apparently after schwarzer Glaskopf.

Definition of psilomelane in US English:

psilomelane

nounˌsʌɪlə(ʊ)məˈleɪn
Mineralogy
  • A hard black ore of manganese which consists of a mechanical mixture of manganese oxides and hydroxides, usually also containing barium and other metals.

Origin

Mid 19th century. From psilo- + ancient Greek μέλαν, neuter of μέλας black, after German Psilomelan, itself apparently after schwarzer Glaskopf.

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