(of characteristics or diseases) passed from the genes of a parent to a child, or (of titles and positions in society) passed from parent to a child as a right(特点或疾病)遗传的;(称号或爵位)世袭的
a hereditary disease遗传性疾病
Depression is often hereditary.抑郁症常常是遗传的。
It is a hereditary title, so Mark Howard will become Sir Mark Howard on his father's death.这是个世袭的头衔,所以马克‧霍华德在他父亲去世后将成为马克‧霍华德爵士。