rock froth
noun
Molten or solidified lava that has expanded or that is low in density due to the presence of internal bubbles of steam or gas.
Origin
Late 19th century.
- causatively
- cause
- cause a flutter among the dovecotes
- cause and effect
- cause célèbre
- causeless
- cause of action
- causer
- causerie
- causeway
- causewayed camp
- causey
- caustic
- caustically
- causticity
- caustic potash
- caustic soda
- cauterise
- cauterization
- cauterize
- cautery
- Cauthen, Steve
- caution
- cautionary
- caution money