[sine wave] n (1893): a waveform that represents periodic oscillations in which the amplitude of displacement at each point is proportional to the sine of the phase angle of the displacement and that is visualized as a sine curve: sine curve; also: a wave so represented
SINE WAVE
Meaning of SINE WAVE in English
Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012