From Longman Dictionary of Contemporary Englishsimmersim‧mer1 /ˈsɪmə $ -ər/ verb 1 [intransitive, transitive]DFCCOOK to boil gently, or to cook something slowly by boiling it gently Bring the soup to the boil and allow it to simmer gently for about half an hour.2 [intransitive]EMOTIONAL if you are simmering with anger, or if anger is simmering in you, you feel very angry but do not show your feelingssimmer with He was left simmering with rage.3 [intransitive] if an argument is simmering, people feel angry with each other but only show it slightly The row has been simmering for some time. Violent revolt was simmering in the country. → simmer down→ See Verb table
Examples from the Corpussimmer• Several kettles were on the stove, simmering.• With Sam and me, it was ever simmering.• long-simmering ethnic conflicts• The debate about school closures has been simmering among locals for years.• Let the soup simmer for 10 minutes.• Bring the stew to a boil, then let it simmer for 20 minutes.• Cover the pan and let it simmer for fifteen minutes.• Combine all ingredients and simmer gently for 30 to 45 minutes.• Bring to simmer over medium heat.• Cover pan and simmer slowly until rabbit is tender, about 20 minutes.• Simmer the macaroni in lightly salted water.• Place a rack in a pot holding 1 to 2 inches of gently simmering water.simmer gently• In one corner stood a gas-stove on which a black kettle simmered gently.• Bring to the boil, simmer gently for 1-2min. 4 Serve warm or chilled, accompanied by sweet cinnamon cream.• Lower the heat, cover and simmer gently for 1 hour or until the meat is tender.• Cover and simmer gently for 10 minutes until the fruit is plump and soft.• Bring to the boil, then reduce the heat, cover and simmer gently for 15 minutes. 3.• Cover and simmer gently for 15 minutes.• Bring back to just under the boil and simmer gently for 5 minutes.• Return rabbit to skillet, cover, and simmer gently until rabbit is tender, about 40 minutes.