bathysphere

== English == === Etymology === From bathy- +‎ -sphere. A genericization from the particular bathysphere in the 1930s named Bathysphere. The name bathysphere was coined decades after the introduction of the device in the 1890s. === Pronunciation === (UK) IPA(key): /ˈbæθɪˌsfɪə(ɹ)/ === Noun === bathysphere (plural bathyspheres) A spherical steel deep-diving chamber with perspex windows, in which persons are lowered to the depths by a cable to study the oceans and deep-sea life; the precursor to the bathyscaphe. Synonym: diving sphere ==== Derived terms ==== ==== Related terms ==== ==== Translations ==== ==== See also ==== submarine submersible diving bell