reservoir rock
noun
Rock that is or may be a reservoir for oil or natural gas.
Origin
Late 19th century.
- butt dialling
- butte
- butt end
- butter
- butter-and-eggs
- butterball
- butter bean
- butterbur
- butter cap
- buttercream
- buttercup
- buttercup squash
- butter dish
- butterface
- butter factory
- butterfat
- Butterfield, William
- butterfingered
- butterfingers
- butterfish
- butterfly
- butterfly bush
- butterfly cake
- butterfly effect
- butterfly fish