加か法ほう的てきかほうてきMeanings1na-adjectiveadditivemathematicsMathematical term describing a property or operation that involves addition or is preserved under addition.この関かん数すうは加か法ほう的てきである。This function is additive.加か法ほう的てきな性せい質しつを持もつ集しゅう合ごうを調しらべる。We investigate sets that have additive properties.