| 单词 | Triassic |
| 释义 | Triassic adj. & n. Geol. --adj of or relating to the earliest period of the Mesozoic era with evidence of an abundance of reptiles (including the earliest dinosaurs) and the emergence of mammals. Usage Cf. Appendix II. --n this period or system. Etymology: LL trias (as TRIAD), because the strata are divisible into three groups |
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