アデノーマMeanings1nounadenomamedicineMedical term for a benign tumor of glandular tissue. The Japanese synonym 腺腫 (せんしゅ) is also used.See also: 腺腫検けん査さの結けっ果か、甲こう状じょう腺せんに小ちいさなアデノーマが見みつかった。The examination revealed a small adenoma in the thyroid gland.