nonexpansion; localization; nonaggravation
Technical term used in medical or scientific contexts to indicate that a condition, lesion, or process is not spreading or worsening. The glosses 'localization' and 'nonaggravation' reflect specific clinical uses.
CT examination confirmed nonexpansion of the tumor.
This treatment aims at localization of the lesion.
Compound of 不 (negative prefix) and 拡大 (expansion). The exact historical derivation is uncertain, but the term is used in modern technical Japanese.