[ bath-uh-sfeer ]
/ ˈbæθ əˌsfɪər /

noun Oceanography.

a spherical diving apparatus from which to study deep-sea life, lowered into the ocean depths by a cable.


Origin of bathysphere

First recorded in 1925–30; bathy- + -sphere Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for bathysphere

British Dictionary definitions for bathysphere


/ (ˈbæθɪˌsfɪə) /


a strong steel deep-sea diving sphere, lowered by cable
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Science definitions for bathysphere


[ băthĭ-sfîr′ ]

A hollow, spherical steel diving chamber in which people are lowered by cable from a surface vessel to explore the ocean depths. In 1934 a bathysphere carrying William Beebe and an associate reached a record depth of over 923 m (3,028 ft). Because space in the bathysphere is cramped, dives longer than three-and-a-half hours are intolerable, and it was eventually supplanted by the bathyscaphe.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.