possessive(n = noun.communication) genitive, genitive case, possessive case - the case expressing ownership;
is a kind of oblique, oblique case
has particulars: attributive genitive, attributive genitive case

1.  possessive(a = adj.pert) genitive - serving to express or indicate possession; "possessive pronouns"; "the genitive endings"

2.  possessive(s = adj.all) - desirous of owning; "small children are so possessive they will not let others play with their toys"
Derived forms verb possess₂, noun possessiveness₁

3.  possessive(s = adj.all) - having or showing a desire to control or dominate; "a possessive parent"
Derived forms verb possess₂, noun possessiveness₁

   Of or pertaining to possession; having or indicating possession. [1913 Webster]

1.  The possessive case. [1913 Webster]

2.  A possessive pronoun, or a word in the possessive case. [1913 Webster]

possessive, adj. & n.
--adj.
1 showing a desire to possess or retain what one already owns.
2 showing jealous and domineering tendencies towards another person.
3 Gram. indicating possession.
--n. (in full possessive case) Gram. the case of nouns and pronouns expressing possession.

Idiom:
possessive pronoun each of the pronouns indicating possession (my, your, his, their, etc.) or the corresponding absolute forms (mine, yours, his, theirs, etc.).

Derivative:
possessively adv. possessiveness n.

Etymology:
L possessivus (as POSSESS), transl. Gk ktetike (ptosis case)

possessive case