atavusglossary / ATAVUS atavus (at-[schwa]-v[schwa]s), n. [Latin] Roman & civil law. The male ascendant in the fifth degree; a great-grandfather’s or great-grandmother’s grandfather; a fourth grandfather. 词条贡献者 译员Bernardine,毕业于英国顶尖的高级翻译学院,专注翻译各种与医疗保健及生命科学有关的法律文件。