batho-, bathy-
(Greek: deep, depth)
bathysmal (adjective), more bathysmal, most bathysmal
Pertaining to the depths of the ocean: In the fantasy book Susan was reading, it was said that the mermaid came up daily from the bathysmal parts of the sea and returned every evening to her family deep down in the water.
bathysophical (adjective), more bathysophical, most bathysophical
A reference to a knowledge of deep-sea life and conditions: In the story Jane was reading, the king of the ocean possessed great bathysophical wisdom about all the things found in the bottom of the ocean.
A round watertight diving chamber with observation windows: A bathysphere was usually lowered by cables from a ship and it was formerly used to study deep-sea life.
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The bathysphere is also described as a circular tethered metal compartment with an inside diameter of less than three feet in which the deep-sea pioneers cramped themselves for several hours during each immersion.
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The record that is made by a bathythermograph (an instrument that records water temperature in relation to ocean depth): As part of the course on oceanography, Mandy had to explain what a bathythermogram was and what was indicated by the documentation it presented.
A device or instrument for recording the temperature against the depth (pressure) in the ocean from a ship that is underway or in motion: A bathythermosphere, or BT, was used by senior students for scientific purposes for the university, and especially to find out the distribution of water temperature in relation to th deepness of the ocean.
A type of ship, such as a bathysphere or submarine, designed to operate far below the surface of the water: The crew had to prepare themselves for the underwater exploration in a bathyvessel, which was the first time for them.
A line connecting the points on the surface of the earth where a certain temperature is found at the same depth, usually used for showing the depths in oceans or lakes at which points have the same temperature: Isobathytherms are usually drawn to show cross sections of the water mass.
Inter-related cross references, directly or indirectly, involving the "sea" and the "ocean" bodies of water: abysso- (bottomless); Atlantic; bentho- (deep, depth); halio-, halo- (salt or "the sea"); mare, mari- (sea); necto-, nekto- (swimming); oceano-; pelago- (sea, ocean); plankto- (drifting); thalasso- (sea, ocean).
