Noun, Noun which may take the genitive case particle 'no'
1. deep sea; depths of the sea; ocean depths
Wikipedia definition
2. Deep seaThe deep sea, or deep layer, is the lowest layer in the ocean, existing below the thermocline and above the seabed, at a depth of 1000 fathoms (1800 m) or more. Little or no light penetrates this part of the ocean and most of the organisms that live there rely for subsistence on falling organic matter produced in the photic zone.
Read “Deep sea” on English Wikipedia
Read “深海” on Japanese Wikipedia
Read “Deep sea” on DBpedia


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