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  1. porphyroblast

    • IPA[ˈpɔːfɪrə(ʊ)blast]

    英式

    • n.
      a larger recrystallized grain occurring in a finer groundmass in a metamorphic rock.
    • noun: porphyroblast, plural noun: porphyroblasts

    • 更多解釋
    • IPA[pôrˈfirəˌblast]

    美式

    • n.
      a larger recrystallized grain occurring in a finer groundmass in a metamorphic rock.

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