passing, or capable of passing, naturally from parent to offspring through the genes: Blue eyes are hereditary in our family. Compare congenital.
of or relating to inheritance or heredity: a hereditary title.
existing by reason of feeling, opinions, or prejudices held by predecessors: a hereditary enemy.
Law. descending by inheritance. transmitted or transmissible in the line of descent by force of law. holding title, rights, etc., by inheritance: a hereditary proprietor.
Mathematics. (of a collection of sets) signifying that each subset of a set in the collection is itself a set in the collection. of or relating to a mathematical property, as containing a greatest integer, applicable to every subset of a set that has the property.