preservative

/P R IY0 Z ER1 V AH0 T IH0 V/
noun
  1. 1

    Any agent, natural or artificial that acts to preserve, especially when added to food.

adjective
  1. 1

    Tending to preserve.

    โ€œThe curators took preservative actions to maintain the ancient collection.โ€

Source: https://en.wiktionary.org/wiki/preservative