‖n. [ NL., fr. Gr. baqy`s deep + bi`os life ] (Zool.) A name given by Prof. Huxley to a gelatinous substance found in mud dredged from the Atlantic and preserved in alcohol. He supposed that it was free living protoplasm, covering a large part of the ocean bed. It is now known that the substance is of chemical, not of organic, origin. [ 1913 Webster ]
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 ]
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