加か法ほう群ぐんかほうぐんMeanings1nounadditive groupmathematicsA mathematical term from group theory: a group whose operation is written additively, typically commutative. Used in algebra contexts.整せい数すう全ぜん体たいの集しゅう合ごうは加か法ほう群ぐんをなす。The set of all integers forms an additive group.