fiduciary heirglossary / fiduciary heir Roman & civil law. An heir who takes property as a trustee on behalf of a person who is not eligible to receive the property immediately. See FIDEICOMMISSUM. 词条贡献者 法律翻译徐玲,知名法学院保险法专业,专注翻译各类与保险追偿有关的法律文件。