Hadal refers to the deepest regions of the ocean, specifically below 6,000 meters, named after Hades, the Greek god of the underworld.
Hadal refers to the deepest regions of the ocean, specifically below 6,000 meters, named after Hades, the Greek god of the underworld.
Front | hadal \HAYD-l\ |
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Back | adjective Of or relating to the deepest regions of the ocean, below about 6,000 meters (20,000 feet). [French, from Hades, from Greek Haides, the god of the netherworld and dispenser of earthly riches, his netherworld kingdom, the abode of the shades of the dead.] "The bottoms beneath the high seas at depths of about 6,000 to 18,000 feet (1,800-5,500 meters) are referred to as the abyssal region. These regions are characterized by a temperature that seldom exceeds 4 deg. C. A second term, the hadal region, is used in connection with the still-deeper waters of the oceanic trenches." - Jack Pearce, Marine Biology, Colliers Encyclopedia CD-ROM, 28 Feb 1996. |
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