pre·ser·va·tive 
/prɪˈzɚvətɪv/ noun
plural pre·ser·va·tives /prɪˈzɚvətɪv/ noun [count, noncount] : a substance that is used to preserve something: such as a : a chemical that is added to food to keep it fresh longer
▪ This food does not contain any artificial preservatives.
b : a substance that is used on wood to prevent it from decaying
▪ The wood was treated with preservative.
▪ This food does not contain any artificial preservatives.
b : a substance that is used on wood to prevent it from decaying
▪ The wood was treated with preservative.
