blastula

UK:  ['blæstʃələ]

US:  ['blæstʃələ]

复数：blastulas  

n.

1.胞胚

2.【生物学】囊胚

1 . The rearrangement of the blastula into a three-dimensional organism with inner, middle, and outer layers occurs during gastrulation .
在原肠胚形成过程中，囊胚重新排列，形成包括内层，中层，外层的三围组织。

2 . From two variants of the experiment the most sensitive was the second one, in which polysaccharides were added at the late blastula stage.
从两个实验中，最敏感的是第二个变种，其中多糖在晚囊胚期补充。

3 . blastula Stage in embryonic development which represents the final product of cleavage stages, characterized by formation of the blastocoel.
囊胚代表胚胎发展的最后分裂阶段，特徵为囊胚腔的形成。

4 . The ingrowth and curling inward of a group of cells, AS in the formation of a gAStrula from a blAStula.
内长一组细胞的内部或向内生长，如从囊胚到原肠胚的生长过程

5 . germ ring The thick end rim of the blastoderm evident during late blastula and gastrula stages.
胚环胚膜的增厚边缘发生在囊胚晚期与原肠期阶段的时候。