Definition of: froth

(frôth, froth) noun
1. A mass of bubbles resulting from fermentation or agitation; a colloid system of gas dispersed in a liquid.
2. Any foamy excretion or exudation; foam.
3. Any light, unsubstantial matter; vain or senseless display of wit; idle pleasure; vanity.
—v.t.
1. To cause to foam.
2. To cover with froth.
3. To give forth in the form of foam.
—v.i.
4. To form or give off froth; foam. [<ON frodha]