Chemistry. Of or relating to the chemical element carbon; consisting of or containing carbon.

Chemistry. Of or relating to carbon or its compounds; organic. In early use used esp. to form names of compounds of carbon; spec. of tetravalent…

Chemistry. Of or relating to the element carbon; containing carbon; spec. of divalent carbon (cf. carbonic, adj. 1a) (now rare).

an era in which many coal deposits were laid down; the Carboniferous period.