Pronunciation: (frôth, froth),[key] —n. 1. an aggregation of bubbles, as on an agitated liquid or at the mouth of a hard-driven horse; foam; spume.
2. a foam of saliva or fluid resulting from disease.
3. something unsubstantial, trivial, or evanescent: The play was a charming bit of froth.
—v.t. 1. to cover with froth: giant waves frothing the sand. 2. to cause to foam: to froth egg whites with a whisk. 3. to emit like froth: a demagogue frothing his hate.
—v.i. to give out froth; foam: frothing at the mouth.