Sim"mer (?), v. i. [imp. & p. p. Simmered (?); p. pr. & vb. n. Simmering.] [Prov. E. also simper; -- an onomatopoetic word.] To boil gently, or with a gentle hissing; to begin to boil.

I simmer as liquor doth on the fire before it beginneth to boil.

Sim"mer, v. t. To cause to boil gently; to cook in liquid heated almost or just to the boiling point.

Sim"mer (?), v. i. [imp. & p. p. Simmered (?); p. pr. & vb. n. Simmering.] [Prov. E. also simper; -- an onomatopoetic word.] To boil gently, or with a gentle hissing; to begin to boil.

I simmer as liquor doth on the fire before it beginneth to boil.

Sim"mer, v. t. To cause to boil gently; to cook in liquid heated almost or just to the boiling point.

• the state or process of simmering.
       The kettle was kept on the simmer.
  
• (transitive) to boil slowly at or below the boiling point
       Simmer the soup for five minutes, then serve.
  
• (intransitive) to boil slowly at or below the boiling point
       Simmering water is hot.