a physical disturbance such as an earthquake or upheaval a violent disturbance; "the convulsions of the stock market" violent uncontrollable contractions of muscles
An unnatural, violent, and unvoluntary contraction of the muscular parts of an animal body
The involuntary contractions (drawing together) of muscles resulting from abnormal cerebral (brain) stimulation which may occur with or without loss of consciousness
If there are convulsions in a country, system, or organization, there are major unexpected changes in it. the political convulsions that led to de Gaulle's return to power in May 1958
an event where a person cannot control him/herself and will often convulse, or shake uncontrollably, and sometimes fall on the ground This is also called a seizure
seizure; abnormal involuntary contraction or series of contractions of the muscles