1) Beebe vehicle 2) Diving bell 3) Submersible 
spherical steel vessel for use in undersea observation, provided with portholes and suspended by a cable from a boat. Built by the American ... [1 related articles]
[n] - spherical deep diving apparatus (lowered by a cable) for underwater exploration
bathysphere A spherical deep-diving chamber in which people are lowered by a cable from a surface vessel to study the oceans and deep-sea life. 2. A tethered metal sphere with an inside diameter of less than three feet in which the deep-sea pioneers cramp themselves for several hours during each immersion. In 1934, a bathysphere carrying William ...
noun spherical deep diving apparatus (lowered by a cable) for underwater exploration