first harmonic firsthand • first in first out · · · Info · Definitions · Synonyms · Characters · · first harmonic · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) the lowest tone of a harmonic series. Synonyms: fundamental, fundamental frequency, first harmonic. · · Noun Definition 1 Synonyms · · · fundamental · · Synonym 1 fundamental frequency · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 f latin small letter f U+0066 h latin small letter h U+0068 i latin small letter i U+0069 m latin small letter m U+006D n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074