harmonic series

noun Mathematics.

1. a series in which the reciprocals of the terms form an arithmetic progression.
2. the divergent infinite series, 1 + 1/2 + 1/3 + 1/4 + 1/5 + . . . .

noun

1. maths a series whose terms are in harmonic progression, as in 1 + 1/2 + 1/3 + …
2. acoustics the series of tones with frequencies strictly related to one another and to the fundamental tone, as obtained by touching lightly the node points of a string while playing it. Its most important application is in the playing of brass instruments

1. A series whose terms are in harmonic progression, especially the series 1 + 12 + 13 + 14 + …. and so on.