English dictionary



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English noun: trophoblast

1. trophoblast (animal) the membrane that forms the wall of the blastocyst in early development; aids implantation in the uterine wall


SamplesAfter implantation of the blastocyst in the uterine wall the trophoblast divides into two layers, the chorion and the placenta.


Broader (hypernym)membrane, tissue layer


Part meronymblastosphere, blastula









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