名詞 carboniferous:

1. from 345 million to 280 million years ago
   同義詞：Carboniferous period

形容詞 carboniferous:

1. of or relating to the Carboniferous geologic era
2. relating to or consisting of or yielding carbon
   同義詞：carbonaceous, carbonous, carbonic

Car.bon.if.er.ous

adj.（形容詞）
Of, belonging to, or denoting a geologic division of the Paleozoic Era following the Devonian and preceding the Permian, including the Mississippian Period and the Pennsylvanian Period and characterized, especially in the Pennsylvanian, by swamp formation and deposition of plant remains later hardened into coal.
石炭紀的，石炭系的：屬于或表示地質(zhì)上的一個分段，即緊跟著泥盆紀而早于二疊紀的古生代，包括密西西比紀和賓夕法尼亞紀。古生代的特征，尤其在賓夕法尼亞紀的特征為，沼澤的形成以及后來變硬而成為煤的植物遺骸沉積
carboniferous Producing or containing carbon or coal.
carboniferous 產(chǎn)碳或煤的，含碳或煤的
n.（名詞）
The Carboniferous Period.See table at geologic time
石炭紀，石炭系參見 geologic time