noun, noun or participle which takes 'suru', intransitive verb
Describes a liquid gradually soaking into or spreading through a solid or tissue. Often used in medical, biological, or technical contexts.
がん細胞が周囲の組織に浸潤する。
Cancer cells infiltrate the surrounding tissue.
雨水
Rainwater permeated the wall and mold grew.
noun, noun or participle which takes 'suru', intransitive verb
Figurative extension: an ideology, influence, or culture gradually spreads into a group or area. Often used in political or sociological writing.
新しい思想が若者の間に浸潤していった。
New ideas gradually spread among the youth.