乳にゅう腺せんにゅうせんFreq.FrequencyTop 50,000Meanings1nounmammary glandAnatomical term for the gland that produces milk; used in medical and biological contexts.乳にゅう腺せんは乳にゅう汁じゅうを分ぶん泌ぴつする器き官かんです。The mammary gland is an organ that secretes milk.
