noun, noun which may take the genitive case particle 'no'
deep layer; depths; deep level
Refers to a deep physical layer (e.g., of earth, ocean, or rock) or a deep, underlying level of something abstract (e.g., psychology, society, or meaning). Often used attributively with の.
Antonyms: 表層
深層の地層から化石が発見された。
Fossils were discovered in a deep geological layer.
彼の言葉の深層には別の意味がある。
There is another meaning at a deeper level of his words.