myelencephalonWiktionary 原文构词拆分myelo-前缀“marrow”(anatomy, biology, medicine) Bone marrow. · (anatomy, biology, medicine) Spinal cord.+encephalon词根/词干词源说明From myelo- (“marrow”) + encephalon.释义（英文）名词 Noun(neuroanatomy) The portion of the brain composed of the medulla oblongata.词族派生词（1）myelencephalic