What is the meaning of Genitive?

Of or pertaining to that case (as the second case of Latin and Greek nouns) which expresses a quality, origin or possession. It corresponds to the possessive case in English.

An inflection pattern (of any given language) that expresses origin or ownership and possession.

A word inflected in the genitive case; a word indicating origin, ownership or possession.

vocative masculine singular of genitīvus

plural of genitiv

Source: wiktionary.org