black catechu black cat • black cherry · · · Info · Definitions · Synonyms · Characters · · black catechu · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) extract of the heartwood of Acacia catechu used for dyeing and tanning and preserving fishnets and sails; formerly used medicinally. Synonyms: black catechu, catechu. · · Noun Definition 1 Synonyms · · · catechu · · Synonym 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 e latin small letter e U+0065 h latin small letter h U+0068 k latin small letter k U+006B l latin small letter l U+006C t latin small letter t U+0074 u latin small letter u U+0075