单词 | Permian |
释义 | Word Frequency Permian(ˈpɜːmɪən) adjective 1. of, denoting, or formed in the last period of the Palaeozoic era, between the Carboniferous and Triassic periods, which lasted for 60 000 000 years noun 2. the Permian Word origin C19: after Perm, Russia |
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