Preservative definition

prĭ-zûrvə-tĭv
Frequency:
(countable) Any agent, natural or artificial that acts to preserve, especially when added to food.

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

noun
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Tending to preserve.

The curators took preservative actions to maintain the ancient collection.

adjective
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Something used to preserve, especially a chemical added to foods to inhibit spoilage.
noun
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Having the quality of preserving.
adjective
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Anything that preserves; esp., a substance added to a food to keep it from spoiling.
noun
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Tending to preserve or capable of preserving.
adjective
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Something used to preserve, especially a chemical added to foods to inhibit spoilage.
noun
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Tending to preserve or capable of preserving.
adjective
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Other Word Forms

Noun

Singular:
preservative
Plural:
preservatives