释义 |
Definition of metacryst in English: metacrystnoun ˈmɛtəkrɪst Geology A large crystal formed in a metamorphic rock by recrystallization, surrounded by a finer-grained groundmass of other metamorphic crystals; a porphyroblast.
Origin Early 20th century. From meta- + cryst-, after phenocryst, xenocryst. Definition of metacryst in US English: metacrystnounˈmɛtəkrɪst Geology A large crystal formed in a metamorphic rock by recrystallization, surrounded by a finer-grained groundmass of other metamorphic crystals; a porphyroblast.
Origin Early 20th century. From meta- + cryst-, after phenocryst, xenocryst. |