Boost your vocab and unleash your potential!

Recently viewed words:
Definitions of trophoblast
  1. noun
    the membrane that forms the wall of the blastocyst in early development; aids implantation in the uterine wall
    "after implantation of the blastocyst in the uterine wall the trophoblast divides into two layers, the chorion and the placenta"
My lists:
Recently viewed words: