improver

[ im-proo-ver ]
/ ɪmˈpru vər /

noun

a person or thing that improves.
a substance or agent added to improve a food, especially as a preservative.

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Origin of improver

First recorded in 1640–50; improve + -er1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

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