词根词缀：carcer-, carcera-

【来源及含义】Latin: prison, jail; an enclosed place

【同源单词】cancel, carcer, carceral, carceral state, disincarcerate, impact incarceration

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