Children's, Intermediate and Advanced Online English Dictionary & Thesaurus

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rust

rust

 
 
pronunciation:
ruhst
parts of speech:
noun, intransitive verb, transitive verb
features:
Word Combinations (noun, verb), Word Explorer
part of speech: noun
definition 1: the orange-red coating that forms on metal surfaces because of oxidation of the iron in their contents, by exposure to air and water.
 
definition 2: any of several plant diseases marked by reddish brown or black spots on the leaves, stems, and other parts, or the parasitic fungi that cause these diseases.
definition 3: any impairment or deterioration through disuse or neglect, as of ability or morals.
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part of speech: intransitive verb
inflections: rusted, rusting, rusts
definition 1: to corrode or become rusty.
definition 2: to suffer impairment or deterioration, as by disuse or neglect.
 
part of speech: transitive verb
definition: to corrode or oxidize (a metal).
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See
  fungus, water