depths; deep part
Refers to the deep interior of something, often used for physical spaces like the body, earth, or buildings, as well as abstract depths.
The wound reached deep into the muscle.
地球の深部にはまだ多くの謎がある。
There are still many mysteries in the depths of the Earth.
deepest part; innermost depths
deep sensation; bathyesthesia
deep vein thrombosis; DVT
deep brain stimulation; DBS
Compound of 深 (しん, 'deep') and 部 (ぶ, 'part, section').