柯林斯词典medulla /mɪˈdʌlə/ 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剑桥词典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