What is the meaning of Hereditary?

Passed on as an inheritance, by last will or intestate.

Of a title, honor or right: legally granted to somebody's descendant after that person's death.

Of a person: holding a legally hereditary title or rank.

Of a disease or trait: passed from a parent to offspring in the genes.

Of a ring: such that all submodules of projective modules over the ring are also projective.

A hereditary ruler; a hereditary peer in the House of Lords.

Source: wiktionary.org