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单词 megacryst
释义

Definition of megacryst in English:

megacryst

noun ˈmɛɡəkrɪst
Geology
  • In an igneous or metamorphic rock: a crystal that is significantly larger than those in the surrounding groundmass or matrix.

Origin

1950s. From mega- + cryst-, after phenocryst, metacryst.

Definition of megacryst in US English:

megacryst

nounˈmɛɡəkrɪst
Geology
  • In an igneous or metamorphic rock: a crystal that is significantly larger than those in the surrounding groundmass or matrix.

Origin

1950s. From mega- + cryst-, after phenocryst, metacryst.

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更新时间:2024/11/8 23:16:43