reinsurerglossary / REINSURER reinsurer. An insurer that assumes all or part of a risk underwritten by another insurer, usu. in exchange for a percentage of the original premium. [Cases: Insurance 3593.] 词条贡献者 译员Susanne,知名国际商学院金融专业,专注翻译各种与并购诉讼有关的法律文件。