proterobase
/ˈprəʊt(ə)rə(ʊ)ˌbeɪz/Geology (now rare )
noun
An altered basaltic or dioritic rock containing primary brown hornblende and purple-brown augite.
Origin
Late 19th century. After diabase.
- chamber pot
- chamber practice
- chamber process
- chamber-ridden
- chamber set
- Chambers, Sir William
- chamber storey
- Chambers, Whittaker
- Chambertin
- chamber tomb
- chamber utensil
- chamber vessel
- chamber work
- chambranle
- chambray
- chambress
- chambré
- Chambéry
- Chambéry gauze
- chamcha
- chameleon
- chameleonic
- chameleon-like
- chameli
- chametz