an organ in its earliest stage of development; the foundation for subsequent development
同义词：anlage
primordium详细解释
pri.mor.di.um n.（名词）【复数】pri.mor.di.a[-dô-…] An organ or a part in its most rudimentary form or stage of development.原基，最初阶段：处于最基础的形态或发育阶段的器官或部分 来源：Latin promôrdium * see primordial 拉丁语 promôrdium *参见 primordial
