black tongue blacktongue • black-tongued · · · Info · Definitions · Synonyms · Characters · · black tongue · · Text Common · · Latin · · Scripts 12 · · Length 3 · · Syllables Definitions · · · (noun) a benign side effect of some antibiotics; dark overgrowth of the papillae of the tongue. Synonyms: hairy tongue, furry tongue, black tongue. · · Noun Definition 1 Synonyms · · · hairy tongue · · Synonym 1 furry tongue · · Synonym 2 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 e latin small letter e U+0065 g latin small letter g U+0067 k latin small letter k U+006B l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F t latin small letter t U+0074 u latin small letter u U+0075