subbituminous
adjective
sub·bi·tu·mi·nous ˌsəb-bə-ˈtü-mə-nəs 
-bī-,
-ˈtyü-
: of, relating to, or being coal of lower rank than bituminous coal but higher than lignite
Word History
First Known Use
1835, in the meaning defined above
- fuller cock
- fuller faucet
- Fuller rose beetle
- fuller's card
- fuller's earth
- fuller's herb
- fuller's rose weevil
- fuller's teasel
- fuller's thistle
- fullerboard
- fullered
- fullerene
- fullerenes
- fulleries
- fullering
- fullering tool
- fullers
- Fullerton
- fullest
- fullface
- fullfaces
- fullhearted
- fullheartedly
- fullheartedness
- fullier