1.
deep layer, depths, underlying level
The deeper, hidden, or underlying layer of something. Used both literally (deep layers of the ocean, earth, or skin) and figuratively (the depths of the mind, underlying causes of phenomena).
深層心理を探る。
To explore the depths of the psyche.
問題の深層にある原因を突き止める必要がある。
We need to identify the root cause underlying the problem.
深層学習はAI技術の中核を担っている。
Deep learning plays a central role in AI technology.
USAGE:
Combines 深 (deep) and 層 (layer, stratum). Used in psychology (深層心理 — deep psychology), oceanography (深層水 — deep water), and technology (深層学習 — deep learning). Contrasts with 表層 (surface layer).
COMMON COLLOCATIONS:
- 深層心理: deep psychology, subconscious
- 深層学習: deep learning
- 深層水: deep water
- 深層に潜む: to lurk in the depths
- 深層意識: deep consciousness