柯林斯詞典medulla /m??d?l?/ 1. N the innermost part of an organ or structure 髓質2. N medulla oblongata的縮寫→short for medulla oblongata 返回 medulla劍橋詞典the inner part of a body part or organ （身躰部分或器官）髓質，最內部分 返回 medulla