柯林斯詞典rhombencephalon /?r?mb?n?s?f??l?n/ 1. N the part of the brain that develops from the posterior portion of the embryonic neural tube and comprises the cerebellum, pons, and the medulla oblongata 后腦 (Nontechnical name hindbrain)→compare mesencephalon , prosencephalon 返回 rhombencephalon