convulsion
Appearance
Pronunciation
[change]Noun
[change]- A convulsion is when someone's muscles contract very hard without the person wanting it.
- Ow, my arm is having a convulsion! It's so tense and I can't relax it!
- A convulsion is when there is a lot of turmoil--if nobody knows what is happening and people are afraid it is a convulsion.
- Earthquakes can cause convulsions because they are so terrifying.