kaitei
1. bottom of the ocean; seafloor
2. undersea; submarine
★ Common
Noun
#67508
1. bottom of the ocean; seafloor
2. undersea; submarine
1. submarine volcano
1. undersea cable; submarine cable
1. submarine earthquake
1. undersea tunnel
1. offshore oil field
1. submarine topography
1. submarine telegraphy
1. seabed probe; probe of the ocean floor
1. submarine valley; submarine canyon