Able to repair or ameliorate.
Of 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.
Suggesting or relating to a positive or approving evaluation.
A linguistic unit (such as a word, morpheme) that implies a positive or approving evaluation.
That which betters or improves.
Serving to prevent or protect against an undesired effect, especially disease or pregnancy
A medicine which preserves or defends against disease; a preventive.
Any device or mechanism intended to prevent harmful consequences.
A prophylactic condom.