deep-sea
- s of or taking place in the deeper parts of the sea
deep-sea fishing
deep-sea exploration
- This week photographers stalked him, and fishermen openly trolled the lake with deep-sea tackle.
- But buying the deep-sea sensors and making the electronic links is the easy part.
- Productivity rates would plunge 40% over the world; the deep-sea fishing industry would be deep-sixed; Michelangelo's frescoes in the Sistine Chapel would deteriorate; rare books .