noun Descargar 🔗Compartir Amnios The innermost membrane of the fetal membranes of reptiles, birds, and mammals; the sac in which the embryo is suspended. Examples : "The doctor explained that the amnion, a protective sac filled with fluid, cushions the baby inside the womb. " El médico explicó que el amnios, un saco protector lleno de líquido, amortigua al bebé dentro del útero. biology anatomy medicine organ organism Chat con IAJuego de vocabularioPracticar lectura