Bathyscaphe
WordNet
noun
(1) Navigable deep diving vessel for underwater exploration
WiktionaryText
Etymology
From + . Coined in 1940s by Auguste Piccard, the inventor of bathyscaphe.
Noun
- A self-propelled deep-sea diving submersible for exploring the ocean depths, consisting of a crew cabin similar to a bathysphere suspended below a float filled with a buoyant liquid such as petrol