1.
deep sea; ocean depths; deep ocean
The deepest parts of the ocean, generally considered to be below 200 meters where sunlight does not reach. Used in scientific, documentary, and general contexts.
Usage
深海 combines 深 (deep) and 海 (sea). It is commonly used as a modifier in compound expressions.
Common collocations
- 深海魚 (deep-sea fish)
- 深海探査 (deep-sea exploration)
- 深海生物 (deep-sea organisms)
- 深海に潜る (to dive into the deep sea)
Similar words
海底 means the sea floor or ocean bottom, focusing on the surface rather than the water column. 深海 refers to the deep ocean environment as a whole.