- noun a waveform with a simple shape like a sine curve, produced by a single frequency
- noun the shape of a signal or voltage that is described by the sin formula, giving a rounded wave that repeatedly rises and falls with time
- A periodic wave whose amplitude follows the values of a sine curve. simple harmonic motion is a sinusoidal function of time. power mains current without harmonic current has this waveform. Also called sinusoidal wave.
- synonymsinusoidal wave