first mortgageglossary / first mortgage A mortgage that is senior to all other mortgages on the same property. [Cases: Mortgages 151. C.J.S. Mortgages §§ 210–212, 226.] 词条贡献者 资深译员Christina,毕业于英国一流的高级翻译学院,擅长翻译涉及教育培训领域的法律文件。