N  oscillation, vibration, libration, motion of a pendulum, nutation, undulation, pulsation, pulse, alternation, coming and going, ebb and flow, flux and reflux, ups and down, fluctuation, vacillation, wave, vibratiuncle, swing, beat, shake, wag, seesaw, dance, lurch, dodge, logan, loggan, rocking-stone, vibroscope, oscillating, oscillatory, undulatory, pulsatory, libratory, rectilinear, vibratory, vibratile, pendulous, to and fro, up and down, backwards and forwards, hither and yon, seesaw, zigzag, wibble-wabble, in and out, from side to side, like buckets in a well.

bloody flux, esophageal reflux, flux, flux applicator, flux density, flux density unit, flux unit, gastroesophageal reflux, hepatojugular reflux, luminous flux, luminous flux unit, magnetic flux, magnetic flux density, magnetic flux unit, neutron flux, oesophageal reflux, radiant flux, reflux, reflux condenser, soldering flux, state of flux, ureterorenal reflux, vesicoureteral reflux