preservative

(noun, adjective)

adjective

1. tending or having the power to preserve

- timbers should be treated with a preservative substance

Similar word(s): protective

Sentences with preservative as an adjective:

- The curators took preservative actions to maintain the ancient collection.

noun

1. a chemical compound that is added to protect against decay or decomposition

Definition categories: substance, compound

Sentences with preservative as a noun:

- Salt, sugar, and acid all act as preservatives when making pickles.