sinewaves

/S IH1 N W EY1 V Z/
noun
  1. 1

    A periodically oscillating waveform as described by the sine function, possibly multiplied by some amplitude, shifted by some phase, and translated by an additive constant.

Source: https://en.wiktionary.org/wiki/sine%20wave, https://en.wiktionary.org/wiki/sinewave, https://en.wiktionary.org/wiki/sinewaves