bathyscaph

Meaning

A self-propelled, free-diving submersible vessel designed for deep-sea exploration, consisting of a pressurized cabin attached to a large float filled with gasoline.

Examples

• The bathyscaph Trieste set a world record by reaching the deepest point of the ocean floor.
• Engineers spent years perfecting the buoyancy system of the bathyscaph to ensure it could safely return to the surface.