deep-sea

[deep-see]

adjective

of, pertaining to, in, or associated with the deeper parts of the sea: deep-sea fishing; deep-sea diver.

Origin of deep-sea

First recorded in 1620–30
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019


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British Dictionary definitions for deep-sea

deep-sea

noun

(modifier) of, found in, or characteristic of the deep parts of the seadeep-sea fishing
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012