allantois

noun 0.732

chorion

noun 0.722

amnion

noun 0.595

placenta

noun 0.574

trophoblast

noun 0.567

choroid

noun 0.567

chorionic gonadotropin

noun 0.558

human chorionic gonadotropin

noun 0.553

cytotrophoblast

noun 0.546

umbilical cord

noun 0.536

amnio

noun 0.535

vitellus

noun 0.533

haustorium

noun 0.533

placental

noun 0.533

choristoma

noun 0.533

urachus

noun 0.528

choli

noun 0.527

placentation

noun 0.525

embryotoxon

noun 0.523

choline

noun 0.518

chalaza

noun 0.515

eutherian

noun 0.514

embryo sac

noun 0.514

chordate

noun 0.512

trophectoderm

noun 0.510

embryo

noun 0.509

notochord

noun 0.507

fetus

noun 0.507

oviduct

noun 0.506

amnionitis

noun 0.506

chorionic villus sampling

noun 0.505

chorioretinitis

noun 0.504

epiblast

noun 0.501