upheaval
         n 1: a state of violent disturbance and disorder (as in politics
               or social conditions generally); "the industrial revolution
               was a period of great turbulence" [syn: {turbulence},
               {upheaval}, {Sturm und Drang}]
         2: a violent disturbance; "the convulsions of the stock market"
            [syn: {convulsion}, {turmoil}, {upheaval}]
         3: (geology) a rise of land to a higher elevation (as in the
            process of mountain building) [syn: {upheaval}, {uplift},
            {upthrow}, {upthrust}]
         4: disturbance usually in protest [syn: {agitation},
            {excitement}, {turmoil}, {upheaval}, {hullabaloo}]

English Dictionary: upheaval	by the DICT Development Group
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Upheaval \Up*heav"al\, n.       The act of upheaving, or the state of being upheaved; esp.,       an elevation of a portion of the earth's crust. --Lubbock.