{f} cook steadily at a temperature just below the boiling point; be steadily cooked at a near-boiling temperature; seethe, be in a state of suppressed anger or excitement
If a conflict or a quarrel simmers, it does not actually happen for a period of time, but eventually builds up to the point where it does. bitter divisions that have simmered for more than half a century The province was attacked a month ago after weeks of simmering tension. when something is boiling gently
To cook liquid at about 185°, or just below a boil Tiny bubbles just begin to break the surface
temperature just below the boiling point; "the stew remained at a simmer for hours" boil slowly at low temperature; "simmer the sauce"; "simmering water