dictionary.pt
rust
nounfemininegeneral usecommon/fɨ.ˈʁu.ʒɐ̃j̃/fer·ru·gem
Definition
1Layer of oxide, usually reddish or brownish in colour, that forms on the surface of iron or some metal alloys due to oxidation.
Usage examples
“The old iron gate was covered in rust.”
“It is important to treat rust quickly to prevent the metal from being damaged.”
Common combinations
rust on the carrust stainprevent rustrust-proof product
Idiomatic expressions
- to gather rust (to be idle, unused, deteriorating)