rust fungus rust-eaten • rust joint · · · Info · Definitions · Synonyms · Characters · · rust fungus · · Text Common · · Latin · · Scripts 11 · · Length Definitions · · · (noun) any of various fungi causing rust disease in plants. Synonyms: rust. · · Noun Definition 1 Synonyms · · · rust · · Synonym 1 rusting · · Synonym 2 corrode · · Synonym 3 eat · · Synonym 4 rusty · · Synonym 5 rust-brown · · Synonym 6 Characters · · space U+0020 f latin small letter f U+0066 g latin small letter g U+0067 n latin small letter n U+006E r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 u latin small letter u U+0075