adjective
(archaic) Of or pertaining to the generation of offspring; generative, procreative, reproductive.
Of a grammatical case: in an inflected language (such as Greek or Latin), expressing that a thing denoted by a word is related to a thing denoted by another word as its origin or possessor; and in an uninflected language (such as English), expressing origin or possession; possessive.
Of, pertaining to, or used in the genitive case.
noun
(countable, uncountable) Ellipsis of genitive case (“a grammatical case used to express a relationship of origin or possession”).
(countable) A word inflected in the genitive case, and which thus indicates origin or possession.