1. Any earthquake that happens at great depth.
2. An earthquake of deep origin recordable at seismographic stations around the world.
Pertaining to the depths of the ocean.
, more bathysophical, most bathysophical
A reference to a knowledge of deep-sea life and conditions.
bathysphere (s) (noun)
, bathyspheres (pl)
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.
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).
1. A device for obtaining a record of temperature against depth (pressure) in the ocean from a ship that is underway or in motion.
2. An instrument for recording water temperature as compared to depth.
A ship; such as, a bathysphere or submarine, designed to operate far below the surface of the water.
1. A line connecting the points on the surface of the earth where a certain temperature is found at the same depth.
2. A line or surface 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:
bentho- (deep, depth);
halio-, halo- (salt or "the sea");
mare, mari- (sea);
necto-, nekto- (swimming);
pelago- (sea, ocean);
thalasso- (sea, ocean).