振蕩 zhèndàng to vibrate Origin Definitions Defs Strokes Stroke Words Sentences Sents 振荡器 zhèndàngqì oscillator a device that produces a regular, repeating signal or vibration, such as an electronic oscillator or a mechanical vibrator电磁振荡 diàncízhèndàng electromagnetic oscillation The rhythmic variation of electric and magnetic fields or charges over time.