资料来源 : pyDict

外胚层[成为外胚叶]

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Epiblast \Ep"i*blast\, n. [Pref. epi- + -blast.] (Biol.)
   The outer layer of the blastoderm; the ectoderm. See
   {Blastoderm}, {Delamination}.