Geol.
1. coal-bearing strata.
2. ( caps. ) in Europe, a portion of the Carboniferous System, characterized by widespread coal deposits.
[ 1655-65 ]
Geol.
1. coal-bearing strata.
2. ( caps. ) in Europe, a portion of the Carboniferous System, characterized by widespread coal deposits.
[ 1655-65 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012