Definitions for hadalˈheɪd l
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Random House Webster's College Dictionary
ha•dalˈheɪd l(adj.)
of or pertaining to the biogeographic region of the ocean bottom below the abyssal zone, or from approximately 20,000 ft. (6500 m) to the greatest ocean depths.
Category: Oceanography
Origin of hadal:
1955–60; Had (es ) + -al1
Princeton's WordNet
hadal(adj)
relating to the deepest parts of the ocean (below 6000 meters)
Wiktionary
hadal(Adjective)
of, or relating to the deepest parts of the ocean
Origin: From hadal, from Hadès + -al.
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