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Definition of Preservative
1. Adjective. Tending or having the power to preserve. "Timbers should be treated with a preservative substance"
2. Noun. A chemical compound that is added to protect against decay or decomposition.
Definition of Preservative
1. a. Having the power or quality of preserving; tending to preserve, or to keep from injury, decay, etc.
2. n. That which preserves, or has the power of preserving; a presevative agent.
Definition of Preservative
1. Noun. (countable) any agent, natural or artificial that acts to preserve, especially when added to food ¹
2. Adjective. tending to preserve ¹
¹ Source: wiktionary.com
Definition of Preservative
1. [n -S]