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Carboniferous ['kɑ:bə'nɪf(ə)rəs] adj.
gen.	石炭紀 (Sekitan-ki) River and Water Resources Glossary (Infrastructure Development Institute Japan)
carboniferous ['kɑ:bə'nɪf(ə)rəs] adj.
gen.	石炭紀の River and Water Resources Glossary (Infrastructure Development Institute Japan)
English thesaurus
Carboniferous ['kɑ:bə'nɪf(ə)rəs] n
geol.	Carbon (MichaelBurov); Carb (MichaelBurov)
Carboniferous ['kɑ:bə'nɪf(ə)rəs] adj.
geol.	Carbon (MichaelBurov); Carb (MichaelBurov)