悪あく性せい腫しゅ瘍ようあくせいしゅようじ字FuriganaMeanings1nounmalignant tumor; cancermedicine›Medical term for a cancerous growth. In everyday conversation, 癌 (がん) is more common, but 悪性腫瘍 is used in formal or clinical contexts.See also: がん検けん査さの結