blastocoele

1. After thawing, 26 of the33 embryos ( most of which were composed of between two and ten cells) developed to blastocyst stage in which the blastocoele is formed.
   解冻后，33枚胚胎中有26枚（大多数胚胎含有2到10个细胞）发育到囊胚阶段，此时囊胚腔已经形成。

noun

1. the fluid-filled cavity inside a blastula

   Synonym:    blastocoelblastocelesegmentation cavitycleavage cavity