| 释义 |
mes·o·derm AHD[mĕzʹə-dûrm', mĕsʹ-] D.J.[ˈmezəˌdɜːm, ˈmes-]K.K.[ˈmɛzəˌdɝm, ˈmɛs-]n.（名词）- The middle embryonic germ layer, lying between the ectoderm and the endoderm, from which connective tissue, muscle, bone, and the urogenital and circulatory systems develop.中胚层：中间胚芽层，位于外胚层和内胚层之间，最终发育成结缔组织、肌肉、骨骼、泌尿系统及循环系统
mes'oderʹmal 或 mes'oderʹmic adj.（形容词） |