Ordovician

n. 奥陶纪, 奥陶系 a. 奥陶纪的

词形变化

more Ordovician 比较级 most Ordovician 最高级

别名

Ordovian

释义与例句

adj.
  1. 1.

    Of a geologic period within the Paleozoic era; comprises lower, middle and upper epochs from about 488 to 443 million years ago.

    地质
name
  1. 1.

    The Ordovician period.

    奥陶纪

    地质

词源

Etymology tree Proto-Indo-European *h₃erg-der.? Proto-Indo-European *dʰeh₁-der.? Proto-Celtic *ordosder. Proto-Indo-European *weyk-der. Proto-Celtic *wiketider. Latin Ordovīcēslbor. English Ordovices Proto-Indo-European *-nós Proto-Italic *-nos Latin -nus Latin -ānus Latin -iānusbor. English -ian English Ordovician From Ordovices + -ian. Coined by English geologist Charles Lapworth in 1879 after the Celtic tribe of the Ordovices.

来源：wiktionary