D defs.my
Entry 1 sense Webster, 1913

Ameliorative

· A·mel·io·ra·tive · IPA /əˈmiːliəɹətɪv/
01 a. Tending to ameliorate; producing amelioration or improvement; as, ameliorative remedies, efforts.
  1. 1.
    Tending to ameliorate; producing amelioration or improvement; as, ameliorative remedies, efforts.