cave diving
noun
The exploration of underwater cave systems, especially as a recreation, using specialized diving equipment.
Origin
1940s.
- ruefulness
- ruel-bone
- rue-leaved
- abstract impressionist
- abstraction
- abstractional
- abstractionism
- abstractionist
- abstraction-monger
- abstractive
- abstractively
- abstractiveness
- abstractly
- abstractness
- abstract noun
- abstract of title
- abstractor
- abstractum
- abstrict
- abstricted
- abstriction
- abstruse
- abstrusely
- abstruseness
- abstrusity