- treated against rusting
WordReference Random House Unabridged Dictionary of American English © 2026
rust•proof
(rust′pro̅o̅f′),USA pronunciation adj.
v.t.
- Metallurgynot subject to rusting.
v.t.
- Metallurgyto coat with a substance that prevents rusting.
- rust + -proof 1685–95
Collins Concise English Dictionary © HarperCollins Publishers::
rustproof /ˈrʌstˌpruːf/, rust-resistant adj
'rustproof' also found in these entries (note: many are not synonyms or translations):