THESAURUS
Pulsate
alternate, be here again, beat, beat a ruffle, beat a tattoo, circle, come again, come and go, come around, come round, come round again, come up again, cycle, drum, fluctuate, flutter, go pitapat, hammer, intermit, oscillate, palpitate, pant, patter, pitter-patter, pound, pulse, pump, quiver, reappear, recur, reoccur, repeat, return, reverberate, revolve, roar, roll, roll around, rotate, ruffle, sound a tattoo, splatter, splutter, sputter, throb, thrum, thud, thump, tick, ticktock, turn, undulate, vibrate, wheel, wheel around
ROGET THESAURUS
Pulsate
Periodicity
VB
recur in regular order, recur in regular succession, return, revolve, come again, come in its turn, come round, come round again, beat, pulsate, alternate, intermit.
Oscillation
VB
oscillate, vibrate, librate, alternate, undulate, wave, rock, swing, pulsate, beat, wag, waggle, nod, bob, courtesy, curtsy, tick, play, wamble, wabble, dangle, swag, fluctuate, dance, curvet, reel, quake, quiver, quaver, shake, flicker, wriggle, roll, toss, pitch, flounder, stagger, totter, move up and down, bob up and down, pass and repass, ebb and flow, come and go, vacillate, teeter, brandish, shake, flourish.
Agitation
VB
be agitated, shake, tremble, tremble like an aspen leaf, quiver, quaver, quake, shiver, twitter, twire, writhe, toss, shuffle, tumble, stagger, bob, reel, sway, wag, waggle, wriggle, wriggle like an eel, dance, stumble, shamble, flounder, totter, flounce, flop, curvet, prance, cavort, squirm, throb, pulsate, beat, palpitate, go pitapat, flutter, flitter, flicker, bicker, bustle, ferment, effervesce, foam, boil, boil over, bubble up, simmer, toss about, jump about, jump like a parched pea, shake like an aspen leaf, shake to its center, shake to its foundations, be the sport of the winds and waves, reel to and fro like a drunken man, move from post to pillar and from pillar to post, drive from post to pillar and from pillar to post, keep between hawk and buzzard, agitate, shake, convulse, toss, tumble, bandy, wield, brandish, flap, flourish, whisk, jerk, hitch, jolt, jog, joggle, jostle, buffet, hustle, disturb, stir, shake up, churn, jounce, wallop, whip, vellicate.