内ない攻こう

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.

• 感かん染せん症しょうが内ない攻こうして重じゅう篤とくな状じょう態たいになった。

  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.

• 不ふ満まんが内ない攻こうして、ついに爆ばく発はつした。

  His frustration built up inside and finally exploded.