rustproof

[ ruhst-proof ]
/ ˈrʌstˌpruf /

adjective

not subject to rusting.

verb (used with object)

to coat with a substance that prevents rusting.

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Origin of rustproof

First recorded in 1685–95; rust + -proof
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for rustproof

British Dictionary definitions for rustproof

rustproof
/ (ˈrʌstˌpruːf) /

adjective

treated against rusting
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012