Siluriann.
英 sai'ljuəriən; si- | 美
中文n. [地质] 志留纪；希留利亚纪\nadj. 志留纪的；希留利亚纪的
[地质] 志留纪；希留利亚纪
adj. 志留纪的；希留利亚纪的
词根词源
Silurian (adj.)1708, "pertaining to the Silures," from Latin Silures "ancient British tribe inhabiting southeast Wales." Geological sense is from 1835, coined by Sir Roderick Impey Murchison (1792-1871) because rocks of this period are especially frequent in Wales.
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