You searched for: “deep”
deep
Away from the exterior surface or farther into the body, as opposed to superficial.
This entry is located in the following unit: Medical Orientation Words with Reference to the Body (page 1)
Ocean and Deep Sea Terms
(the study of the deep seas or oceans involves the abyss or the "deep seas" which cover almost two-thirds of the earth's surface; showing applicable scientific terminology in this unit)
Word Entries containing the term: “deep”
deep discharge
Discharging a battery to 20 percent or less of its full charge capacity.
This entry is located in the following unit: Photovoltaic Conversion Efficiency Terms + (page 5)
deep scattering layers
The layers observed through the water column (vertical section of the sea) on echo sounders.

Echo sounders are measuring instruments that send out acoustic pulses in water and measure distances in terms of the time for the echo of the pulse to return.

SONAR is an acronym for "sound navigation ranging"; ASDIC is an acronym for "antisubmarine detection investigation committee".

The name refers to the way they scatter sound waves. The layers are typically composed of krill, midwater fish, and siphonophores (species which form complex free-swimming communities composed of numerous zooids of various kinds, or organic bodies or cells having locomotion, some of which act as floats or as swimming organs, others as feeding or nutritive zooids, and others as reproductive zooids).

This entry is located in the following unit: Ocean and Deep Sea Terms (page 2)
Deep Sea Numerical Statistics
1. Average weight of organisms per square meter (3.28 feet) near the surface: five kilograms (eleven pounds).

By comparison, the biomass at great depths is less than one gram per square meter (3.28 feet); there, the populations are less dense, although the diversity of species is greater.

2. Rate of expansion between tectonic plates under the Arctic Ocean: seven millimeters (.28 inches) a year.

Compare this to the rate in the Pacific, where they separate at a speed of 18 centimeters (7 inches) per year; which is about twenty-five times faster.

3. Average depth of the oceans: 3,729 meters (12,234 feet or 2.32 miles).
4. Average depth of the Pacific, the deepest and largest of all oceans: 4,188 meters (13,740 feet or 2.60 miles).

By itself, it represents nearly half of the expanse of water on earth.

5. Hydrothermal sites discovered in the last 25 years: 100.
—Compiled from and based on information located in
The Deep, The Extraordinary Creatures of the Abyss by Claire Nouvian;
The University of Chicago Press; Chicago, Illinois; 2007; page 246.
This entry is located in the following unit: Ocean and Deep Sea Terms (page 2)
deep-cycle battery
A battery with large plates that can withstand many discharges to a low state-of-charge.
This entry is located in the following unit: Photovoltaic Conversion Efficiency Terms + (page 6)
Ocean and Deep Sea Terms
A list of deep sea terms.
This entry is located in the following unit: Index of Scientific and Technological Topics (page 2)
Ocean and Deep Sea Terms
  1. An Introduction to the Biology of Marine Life by James L. Sumich; Wm. C. Brown Publishers; Dubuque, Iowa; 1988.
  2. Marine Ecology by Jeffrey S. Levinton; State University of New York at Stony Brook; Prentice-Hall Inc.; Englewood Cliffs, New Jersey; 1982.
  3. The Silent Deep by Tony Koslow; The University of Chicago Press; Chicago; 2007.
This entry is located in the following unit: Bibliography or Lists of Glossary-Term Sources (page 1)