1. [noun] The process of being heaved upward, especially the raising of part of the earth's crust.
2. [noun] A sudden violent upset, disruption or convulsion.
3. [noun] A state of violent disturbance and disorder (as in politics or social conditions generally); 'the industrial revolution was a period of great turbulence'.
4. [noun] A violent disturbance; 'the convulsions of the stock market'.
5. [noun] (geology) a rise of land to a higher elevation (as in the process of mountain building).
6. [noun] Disturbance usually in protest.