bathyscaphe
/ˈbæθɪˌskeɪf/
noun
- A free-moving deep-sea submersible vessel used for exploring the ocean depths.
- Unlike a submarine, a bathyscaphe is designed to withstand extreme pressure at great depths.
- The bathyscaphe descended to the bottom of the Mariana Trench.
- Scientists used a bathyscaphe to study deep-sea creatures in their natural habitat.
Synonyms