名詞 possessive:

1. the case expressing ownership
   同義詞：genitive, genitive case, possessive case

形容詞 possessive:

1. serving to express or indicate possession
   同義詞：genitive
2. desirous of owning
3. having or showing a desire to control or dominate

1. My son is very possessive about his mother.
   我的兒子想獨占他的母親。
2. It is often used with a possessive adjective.
   這一詞常與所有格的形容詞連用。

pos.ses.sive

adj.Abbr. poss.（形容詞）縮寫 poss.
Of or relating to ownership or possession.
擁有的，占有的：擁有的或占有的或與其有關(guān)的
Having or manifesting a desire to control or dominate:
占有欲強的：具有控制或主宰的欲望或表現(xiàn)出這種欲望的：
例句：
a possessive parent.
占有欲強的父母

Grammar Of, relating to, or being a noun or pronoun case that indicates possession.
【語法】 名詞所有格的，代詞所有格的：名詞所有格的或代詞所有格的，與其有關(guān)的
n.Abbr. poss.Grammar （名詞）縮寫 poss.【語法】
The possessive case.
所有格
A possessive form or construction.
所有格形式或結(jié)構(gòu)

【引伸】
posses.sively
adv.（副詞）
posses.siveness
n.（名詞）