亜あ群ぐんじ字FuriganaMeanings1nounsubgroupA subset of a group, often used in technical or organizational contexts.この研けん究きゅうでは、患かん者じゃを年ねん齢れいで三みっつの亜あ群ぐんに分わけた。In this study, the patients were divided into three subgroups by age.
