heckelphone heck • Heckerism · · · Info · Definitions · Synonyms · Characters · · heckelphone · · Text Latin · · Script 11 · · Length Definitions · · · (noun) an oboe pitched an octave below the ordinary oboe. Synonyms: basset oboe. · · Noun Definition 1 Synonyms · · · basset oboe · · Synonym 1 Characters · · 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 n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070