noun, noun or participle which takes 'suru', intransitive verb
retrocession; settling in internal organs
Medical term for a disease process moving inward or affecting internal organs. Used in clinical contexts.
感染症が内攻して重篤な状態になった。
The infection retroceded and became a serious condition.
noun, noun or participle which takes 'suru', intransitive verb
becoming pent-up; accumulation of emotions; internalization
Metaphorical extension from the medical sense; describes emotions such as anger or frustration building up inside without outward expression.
不満が内攻して、ついに爆発した。
His frustration built up inside and finally exploded.