Definitions
1.AdjectiveAble to repair or ameliorate.
2.AdjectiveSuggesting or relating to a positive or approving evaluation.
3.AdjectiveOf or relating to conceptual engineering, the normative study of which conceptual demarcation is most conducive to solve the problems the concept is a priori taken to solve."ameliorative inquiry; ameliorative analysis; ameliorative project"
4.NounThat which betters or improves.
5.NounA linguistic unit (such as a word, morpheme) that implies a positive or approving evaluation.