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hadal



ha·dal [ ˈhā-dᵊl]



hadal   
adjective

Definition of hadal

: of, relating to, or being the parts of the ocean below 6000 meters (about 20,000 feet)



First Known Use of hadal

1959, in the meaning defined above



History and Etymology for hadal

French, from Hadès Hades



Dictionary Entries near hadal