名詞 blastoderm:

1. a layer of cells on the inside of the blastula
   同義詞：germinal disc, blastodisc, germinal area

blas.to.derm

n.Embryology （名詞）【胚胎學(xué)】
The layer of cells that develops on the surface of the yolk in an avian or reptilian egg and gives rise to the germinal disk from which the embryo develops.
胚盤：鳥蛋或爬行動物卵的蛋黃表面的細(xì)胞層，胚盤由此形成，胚胎從胚盤發(fā)育
The layer of cells formed by the cleavage of a fertilized mammalian egg. It later divides into the three germ layers from which the embryo develops.
胚盤：由哺乳動物受精卵分裂而形成的細(xì)胞層。后期分裂為三層，胚胎由此發(fā)育

【引伸】
blas.toder.mic 或
blas.todermat.ic