The syncytial outer layer of the trophoblast; site of synthesis of human chorionic gonadotropin. SEE ALSO: trophoblast. SYN: placental plasmodium, plasmodial trophoblast, plasmodiotrophoblast, syncytial trophoblast, syntrophoblast. [syncytium + trophoblast]
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syn·cy·tio·tro·pho·blast sin-.sish-ē-ō-'trō-fə-.blast n the outer syncytial layer of the trophoblast that actively invades the uterine wall forming the outermost fetal component of the placenta called also syntrophoblast compare CYTOTROPHOBLAST
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n.
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syn·cyt·io·tro·pho·blast (sin-sit″e-o-troґfo-blast) 1. the outer syncytial layer of the trophoblast; called also syntrophoblast. 2. syncytiotrophoblastic cell.Medical dictionary. 2011.