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单词 opacite
释义

Definition of opacite in English:

opacite

noun ˈəʊpəsʌɪt
Geology
  • Microscopic dark grains and scales occurring in the groundmass of many igneous rocks, which are too small to be readily identified by optical means and are sometimes attributed to iron oxides or carbon.

Origin

Late 19th century; earliest use found in Edward Dana (1849–1935), mineralogist and physicist. From German Opacit from classical Latin opācus + German -it.

Definition of opacite in US English:

opacite

nounˈəʊpəsʌɪt
Geology
  • Microscopic dark grains and scales occurring in the groundmass of many igneous rocks, which are too small to be readily identified by optical means and are sometimes attributed to iron oxides or carbon.

Origin

Late 19th century; earliest use found in Edward Dana (1849–1935), mineralogist and physicist. From German Opacit from classical Latin opācus + German -it.

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更新时间:2025/6/19 15:43:41