verb. ['ˈsɪmɝ'] boil slowly at low temperature.
1. Verb, 3rd person singular present Add the egg yolk mixture to the sauce, and simmer over low heat. 2. Noun, singular or mass Reduce the heat so that the water is at a gentle simmer. 3. Verb, base form Place the stock pot on a stove and simmer four hours.
noun. ['ˈsɪmɝ'] temperature just below the boiling point.