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

In food and drinks, it’s often used as a thickener, preservative, and sugar substitute. —New Atlas, 13 Mar. 2025

The back of the device houses everything needed to create the foundation, including the preservative system, emulsions and pigments. —Celia Shatzman, Forbes, 27 Feb. 2025

Noun

One focus of their work has been to claim that thimerosal, a mercury-containing preservative previously used in vaccines, causes autism. —ArsTechnica, 26 Mar. 2025

The dyes will not be allowed in meals served as part of school nutrition programs starting on Aug. 1 this year, while the dyes and the two preservatives will not be permitted in drugs and food sold in the state starting on Jan. 1, 2028, according to the governor's office. —Emily Mae Czachor, CBS News, 25 Mar. 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