deep ocean water; deep-sea water
Technical term for water pumped from deep ocean layers, often used in contexts like aquaculture, cosmetics, or health products.
Deep ocean water is said to be rich in minerals.
This cosmetic product uses deep ocean water.
A shorter form meaning 'deep water' in general, not necessarily from the ocean. 海洋深層水 specifically refers to deep ocean water.
Compound of 海洋 (ocean), 深層 (deep layer), and 水 (water). A straightforward modern technical term.