English Lexicon

Deep-Sea

/diːp siː/
nounCEFR B2 (Upper)Top #1500 frequency
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Comprehensive Definitions & Senses

2 senses
As noun
  1. 1

    The part of the ocean that is deeper than the continental shelf, typically characterized by high pressure and low light.

    "Scientists are exploring the deep-sea ecosystems to understand their unique biodiversity."
  2. 2

    Referring to organisms or phenomena that exist in or are associated with the deep ocean.

    "The deep-sea fish exhibit bioluminescence to attract prey in the dark waters."

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Antonyms & Contrasting Words (1)

Linguistic Origin & Historical Etymology

The term 'deep-sea' combines 'deep', derived from Old English 'deop', meaning profound or intense, and 'sea', from Old English 'sǣ', referring to large bodies of saltwater. The phrase has evolved to describe oceanic regions that are significantly below the surface, highlighting the vastness and depth of marine environments.

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