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rustproofing

[ ruhst-proo-fing ]
/ ˈrʌstˌpru fɪŋ /
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noun
the process of making metal rustproof.
Also called rustproofer. a substance used in this process.
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Origin of rustproofing

First recorded in 1915–20; rustproof + -ing1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
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