a. Pertaining to the benthonic environment on the continental slope,
ranging in depth from 200 to 2,000 m. AGI
b. Pertaining to the bottom and overlying waters between 100 and 1,000
fathoms (600 to 6,000 ft or 183 to 1,830 m). AGI
c. Of or pertaining to the deeper parts of the ocean; deep sea.
Webster 3rd
In oceanography, the slope from the continental shelf at 100 fathoms (183
m) to the abyssal zone at 1,000 fathoms (1,830 m). Also called bathyal
district. Webster 3rd
In oceanography, an instrument for measuring vertical currents in the deep
sea. Webster 3rd
A device to measure the electrical conductivity of seawater at various
depths from a moving ship. Abbrev. bc. Hy
In oceanography, a record obtained from sonic sounding instruments.
Webster 3rd
See:batholith
This instrument measures temperature, pressure, and sound velocity to
depths up to 7 miles (11.2 km). The device is completely transistorized
and uses frequency modulation for telemetering. Hunt
a. Relating to the measurement of depths of water in oceans, seas, and
lakes. Syn:bathymetrical
b. Relating to the contour of the bottoms of oceans, seas, and lakes.
Webster 3rd
c. Relating to the distribution in depth of marine or lacustrine
organisms. Webster 3rd
See:bathymetric
Chart showing depths of water by means of contour lines or by color
shading. Hy
See:isobath
In oceanography, the measurement of depths of water in oceans, seas, and
lakes; also, the information derived from such measurements.
Webster 3rd
In oceanography, of or relating to ocean depths and mountain heights.
Webster 3rd
In oceanography, of, relating to, or living in the deeper waters of the
ocean, esp. those several hundred feet below the surface--distinguished
from abyssal and pelagic. Webster 3rd
In oceanography, a navigable submersible ship that is used for deep-sea
exploration, has a spherical watertight cabin attached to its underside,
and uses gasoline and shot for ballast. Webster 3rd
In oceanography, of or relating to the bottom of the deeper parts of the
sea, esp. those parts between 100 fathoms (183 m) and 1,000 (1,830 m)
fathoms deep. Webster 3rd
In oceanography, of or relating to a knowledge of the depths of the sea or
of the things found there. Webster 3rd
In oceanography, a spherical diving apparatus, made large enough to
contain two people and instruments; capable of resisting tremendous
pressure, and therefore of descending to great depths; it is used in
oceanography for the investigation of deepwater faunas. CTD
A coined word for a permanent sea floor installation. Hunt
In oceanography, a record obtained with a bathythermograph.
Webster 3rd
An instrument, which may be lowered into the sea from a vessel at anchor
or underway, to record temperature as a function of depth. The
temperature-sensing device is a Bourdon tube, the depth finder is a
bellows system. Accuracy of temperature is + or - 0.1 degrees F (+ or -
0.056 degrees C); depth + or - 10 ft (3.0 m). Abbrev. bt. Hy