n. | 1. | The act of upheaving, or the state of being upheaved; esp., an elevation of a portion of the earth's crust. |
Noun | 1. | upheaval - a state of violent disturbance and disorder (as in politics or social conditions generally); "the industrial revolution was a period of great turbulence" Synonyms: Sturm und Drang, turbulence |
2. | upheaval - a violent disturbance; "the convulsions of the stock market" Synonyms: turmoil, convulsion | |
3. | upheaval - (geology) a rise of land to a higher elevation (as in the process of mountain building) | |
4. | upheaval - disturbance usually in protest |