CARBONIFEROUS
Scrabble letter values: C3A1R1B3O1N1I1F4E1R1O1U1S1 = 20
Definition
- noun from 345 million to 280 million years ago. — synonyms: Carboniferous_period
- adjective of or relating to the Carboniferous geologic era.
- adjective relating to or consisting of or yielding carbon. — synonyms: carbonaceous, carbonous, carbonic
Examples
- “carboniferous rock system”