English dictionary



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English noun: blastula

1. blastula (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


Synonymsblastosphere


Broader (hypernym)conceptus, embryo, fertilized egg


Narrower (hyponym)blastocyst, blastodermic vessicle


Part holonymblastocele, blastocoel, blastocoele, cleavage cavity, segmentation cavity, trophoblast









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