The modified blastula that is characteristic of placental mammals. It has an outer layer, known as a trophoblast , that participates in the development of the placenta. The inner layer of cells develops into the embryo.
Find another word for blastula. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for blastula, like: blastocyst, gastrula and blastosphere.