preservative

(prē zʉrvə tiv, pri-)

adjective

having the quality of preserving

Origin: ME preseruatyve < MFr preservatif < ML praeservativus

noun

anything that preserves; esp., a substance added to a food to keep it from spoiling

See preservative in American Heritage Dictionary 4

adjective
Tending to preserve or capable of preserving.
noun
Something used to preserve, especially a chemical added to foods to inhibit spoilage.

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