胚外外胚层  mbryonic ectoderm; extraembryonic ectoderm

胚外胚层  extra-embryonic blastoderm

原外胚层  priapism

原外胚层细胞  Rauber’s cell

初期胚外腔  early ectoblastic cavity

次级外胚层  secondary ectoderm

脊椎动物胚胎外胚层盲管  Rathke’s pouch

幕上原始神经外胚层肿瘤  Supratentorial primitive neuroectodermal tumour

胚盘外胚层  blastodermal ectoderm

胚外胚盘  extraembryonic blastoderm

少汗型外胚层发育不良症  Hypohidrotic ectodermal dysplasia

神经外胚层  neuroderm; ectoderm

神经外胚层瘤  neuroectodermal tumors

神经外胚层肿瘤  neuroectodermal tumors; Neuroectodermal tumor

外层胚带  superficial germ band

外胚层  epiblast; Exodermis; ectodermal germ layer; ectoblast; ectoderm; tentacle; eqiblast

外胚层的  metablastic

外胚层发育不良  arithmetical operator; ectodermal dysplasia

外胚层发育不良症  ectodermal dysplasia