rust

adjective

  1. 1

    of the brown color of rust

noun

  1. 1

    any of various fungi causing rust disease in plants

  2. 2

    the formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water

  3. 3

    a plant disease that produces a reddish-brown discoloration of leaves and stems; caused by various rust fungi

  4. 4

    a red or brown oxide coating on iron or steel caused by the action of oxygen and moisture

verb

  1. 1

    become coated with oxide

  2. 2

    become destroyed by water, air, or a corrosive such as an acid

    The metal corroded

    The pipes rusted

  3. 3

    cause to deteriorate due to the action of water, air, or an acid

    The acid corroded the metal

    The steady dripping of water rusted the metal stopper in the sink

Synonyms

Also useful for “rust”:Unscrambler