- an aggregation of bubbles, as on an agitated liquid or at the mouth of a hard-driven horse; foam; spume.
- a foam of saliva or fluid resulting from disease.
- something unsubstantial, trivial, or evanescent: The play was a charming bit of froth.
- to cover with froth: giant waves frothing the sand.
- to cause to foam: to froth egg whites with a whisk.
- to emit like froth: a demagogue frothing his hate.
- to give out froth; foam: frothing at the mouth.
- a mass of small bubbles of air or a gas in a liquid, produced by fermentation, detergent, etc
- a mixture of saliva and air bubbles formed at the lips in certain diseases, such as rabies
- trivial ideas, talk, or entertainment
- to produce or cause to produce froth
- to give out in the form of froth
- to cover with froth
