English noun: blastosphere | |||
| 1. | blastosphere (animal) early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs | ||
| Synonyms | blastula | ||
| Broader (hypernym) | conceptus, embryo, fertilized egg | ||
| Narrower (hyponym) | blastocyst, blastodermic vessicle | ||
| Part holonym | blastocele, blastocoel, blastocoele, cleavage cavity, segmentation cavity, trophoblast | ||