car‧bon‧if‧er‧ous /ˌkɑːbəˈnɪf
ərəs◂ $ ˌkɑːr-/
adjective technical[
Date: 1700-1800;
Origin: carbon + -iferous 'containing, producing' (from Latin -fer)]
producing or containing carbon or coal:
carboniferous rocks [TahlilGaran] Dictionary of Contemporary English ▲