- of, denoting, or formed in the third period of the Palaeozoic era, between the Ordovician and Devonian periods, which lasted for 25 million years, during which fishes first appeared
- the Silurian ⇒ the Silurian period or rock system
单词 | silurian |
释义 | WordReference Random House Unabridged Dictionary of American English © 2024 Si•lu•ri•an (si lŏŏr′ē ən, sī-),USA pronunciation adj.
n.
Collins Concise English Dictionary © HarperCollins Publishers:: Silurian /saɪˈlʊərɪən/ adj
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