词根词缀：placento-, placent-, placenta-

【来源及含义】Latin: flat cake; cakelike mass, especially the uterine organ that connects the mother to the child by way of the umbilical cord

【同源单词】fetoplacental, incarcerated placenta, placentotherapy, thermoplacentography, zonoplacental

词根词缀：therap-

【来源及含义】Greek: heal, cure; treatment; service done to the sick, [a waiting on]

【同源单词】actinotherapy, actinotherapy, aerohydrotherapy, aeroionotherapy, aeropiesotherapy, aerotherapy