[jen-i-tiv] 
Grammar| 1. | (in certain inflected languages) noting a case of nouns, pronouns, or adjectives, used primarily to express possession, measure, or origin: as John's hat, week's vacation, duty's call. |
| 2. | noting an affix or other element characteristic of this case, or a word containing such an element. |
| 3. | similar to such a case form in function or meaning. |
| 4. | the genitive case. |
| 5. | a word in the genitive case. |
| 6. | a construction noting this case or the relationship usually expressed by it. |
[jen-i-tahy-vuh
l] , adjective | gen·i·ti·val (jěn'ĭ-tī'vəl) adj. Of, relating to, or in the genitive case. gen'i·ti'val·ly adv. |