primary insurerglossary / primary insurer An insurer who is contractually committed to settling a claim up to the applicable policy limit before any other insurer becomes liable for any part of the same claim. See excess insurer. 词条贡献者 资深译员筠怡,国际知名法学院民商法专业,专注翻译各种与商业和侵权诉讼有关的法律文件。