单词 | carbonigenous |
释义 | † carbonigenousadj. Geology. Obsolete. carbonigenous era n. an era in which many coal deposits were laid down; the Carboniferous period. ΘΚΠ the world > matter > chemistry > organic chemistry > carbon > [adjective] carbonaceous1788 carbonic1788 carbonous1789 carbonigenous era1844 1844 R. Chambers Vestiges Nat. Hist. Creation 89 Such was the vegetation of the carbonigenous era, composed of forms at the bottom of the botanical scale. 1865 Reader 29 Apr. 477/3 A carbonigenous era composed of stemmy herbage and productive trees. This entry has been updated (OED Third Edition, December 2008; most recently modified version published online June 2018). < |
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