'bathysphere' definitions:

Definition of 'bathysphere'

(from WordNet)
noun
Spherical deep diving apparatus (lowered by a cable) for underwater exploration

Definition of 'bathysphere'

From: GCIDE
  • bathysphere \bath"y*sphere\ n. a spherical deep diving apparatus (lowered by a cable) for underwater exploration; it is constructed with a strong steel shell to withstand high pressures at the ocean bottom. [WordNet 1.5 +PJC]

Synonyms of 'bathysphere'

From: Moby Thesaurus