black spot black spleenwort • black-spot canker · · · Info · Definitions · Characters · · black spot · · Text Common · · Latin · · Scripts 10 · · Length 2 · · Syllables Definitions · · · (noun) any of several fungous diseases of plants that produce small black spots on the plant. Synonyms: black spot. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 k latin small letter k U+006B l latin small letter l U+006C o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074