单词 | Lias |
释义 | Word Frequency Lias(ˈlaɪəs) noun the lowest series of rocks of the Jurassic system Derived forms Liassic (laɪˈæsɪk) adjective Word origin C15 (referring to a kind of limestone), C19 (geological sense) from Old French liois, perhaps from lie lees, dregs, so called from its appearance |
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