资料来源 : Webster's Revised Unabridged Dictionary (1913)

Froth \Froth\, v. t. [imp. & p. p. {Frothed}; p. pr. & vb. n..
   {Frothing}.]
   1. To cause to foam.

   2. To spit, vent, or eject, as froth.

            He . . . froths treason at his mouth. --Dryden.

            Is your spleen frothed out, or have ye more?
                                                  --Tennyson.

   3. To cover with froth; as, a horse froths his chain.