See turbulence in Webster's New World Roget's A-Z Thesaurus II
noun
The condition of being physically agitated:
agitation, commotion, convulsion. See calmAn interruption of regular procedure or of public peace:
agitation, commotion, disorder, disturbance, helter-skelter, stir1, tumult, turmoil, uproar. (Informal) flap, to-do. See calm, order
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