superinstitutionglossary / SUPERINSTITUTION superinstitution. Eccles. law. The investiture of one person in an office that already has an incumbent, as when two individuals claim a benefice by adverse titles. 词条贡献者 资深译员Dan,毕业于美国顶尖的高级翻译学院,专注翻译各种与消费者集团诉讼有关的法律文件。