1. Cooking in a liquid that has been brought to a boil
   "Simmering the soup for hours allowed the flavours to meld";
   - boiling, stewing

1. (cooking) boil slowly at low temperature
   "simmer the sauce"; "simmering water"
    
2. (of a disagreement, conflict, or tension) remain in a state of contained but ongoing agitation or unrest
   "The dispute between the two countries continued to simmer for years"
    
3. Experience or exhibit barely-suppressed anger, frustration, or other strong emotions
   "He simmered with resentment throughout the meeting"

Type of: boil, cookery, cooking, preparation

Encyclopedia: Simmering, Vienna