preservative

1 of 2

adjective

pre·​ser·​va·​tive pri-ˈzər-və-tiv 

: having the power of preserving

preservative

2 of 2

noun

: something that preserves or has the power of preserving

specifically : an additive used to protect against decay, discoloration, or spoilage

Examples of preservative in a Sentence

Noun

This food does not contain any artificial preservatives.

The wood was treated with preservative.

Recent Examples on the Web

Adjective

The document allegedly found there was no link between the preservative thimerosal in flu vaccines and autism. —Bymary Kekatos, ABC News, 10 July 2025

Advertisement That preservative—thimerosal—was used routinely in vaccines until 2001, when federal health officials decided to remove it from the majority of childhood vaccines. —Alice Park, Time, 1 July 2025

Noun

This is thanks to preservatives in the mix, including vinegar and sugar, as well as commercial preservatives. —Katie Rosenhouse, Southern Living, 3 July 2025

The group, called the Advisory Committee on Immunization Practices, or ACIP, voted Thursday to recommend annual single-dose flu vaccines to Americans and against influenza shots containing thimerosal – even though there is no evidence of harm from that preservative. —Annika Kim Constantino,ashley Capoot, CNBC, 1 July 2025

Word History

First Known Use

Adjective

14th century, in the meaning defined above

Noun

15th century, in the meaning defined above

Rhymes for preservative

• conservative
• neoconservative

Kids Definition

preservative

1 of 2 adjective

pre·​ser·​va·​tive pri-ˈzər-vət-iv 

: having the power of preserving

preservative

2 of 2 noun

: something that preserves or has the power of preserving

especially : a substance added to food to prevent spoiling or discoloring

Medical Definition

preservative

noun

pre·​ser·​va·​tive pri-ˈzər-vət-iv 

: something that preserves or has the power of preserving

specifically : an additive used to protect against decay, discoloration, or spoilage

a food preservative