Synonymer till rustingsubstantiv(the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water) rust; rustingverb(become destroyed by water, air, or a corrosive such as an acid) corrode; rust; rusting(cause to deteriorate due to the action of water, air, or an acid) corrode; eat; rust; rusting(become coated with oxide) rust; rusting