frogman
/ˈfrɑɡˌmæn/
noun
- A person who swims underwater using special equipment such as a wetsuit, fins, and breathing apparatus, often for military or scientific purposes.
- A frogman emerged from the water carrying a sample of coral.
- The documentary followed a frogman as he explored a sunken wreck.
- The navy frogman dove into the harbor to inspect the ship's hull.