- trembling or shaking with a slight, rapid motion, or seeming to tremble or shake: The sun climbed higher and movement ceased: over the whole summit, figures lay still in the quivering heat.Forty hertz is really fast, like the quivering light from a faulty fluorescent bulb.
- an act or instance of shaking with a slight but rapid motion:The quivering in the heart upsets the normal rhythm between the atria and the lower parts of the heart, the ventricles.
