a. [f. CARBON + -OUS: perh. after F. carboneux.] Of the nature of or containing carbon.
1794. G. Adams, Nat. & Exp. Philos., I. xi. 483. A carbonous substance, which is disengaged from the blood in the lungs.
1865. Mansfield, Salts, 501. We … see the epibasic attachment for metal salts, which is so strongly marked in H3N, considerably weakened in its carbonous congeners.
