noun🔗Share動物の胚における3つの組織層の最外層で、成体の表皮(皮膚)と神経系を生成するOutermost of the three tissue layers in the embryo of a metazoan animal. Through development, it will produce the epidermis (skin) and nervous system of the adult."During embryonic development, the ectoderm differentiates to form the skin and brain. "発生中に、外胚葉は皮膚と脳を形成するために分化します。biologyanatomyphysiologyorganismanimalChat with AIVocabulary GamePractice Reading