LEARNit Dictionary
carboniferous
adjective
/ˌkɑːbəˈnɪfərəs/
UK
/ˌkɑːrbəˈnɪfərəs/
US
1
producing or containing coal
زغالدار, کربندار
2
of the period in the earth’s history when layers of coal were formed underground
زغالزا, زغالدار, کاربونیفر