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Of the nature of froth; light; empty; unsubstantial; as, a frothy speaker or harangue. Tillotson.

become filled with foam; -- said of a steam boiler when the water is unduly agitated and frothy, as because of chemical action.

Covered with foam; frothy; spumy. Behold how high the foamy billows ride! Dryden.

Zoöl.), a small, leaping, hemipterous insect living on plants. The larvæ are inclosed are frothy liquid called cuckoo spit or frog spit. -- Frog lily (Bot.), the yellow water lily (Nuphar). -- Frog spit (Zoöl.), the frothy exudation of the frog hopper; -- called also frog spittle. See Cuckoo spit, under Cuckoo.…

In a frothy manner.

State or quality of being frothy.

To simmer; to boil. [Obs.] With crackling flames a caldron fries. Dryden The frothy billows fry. Spenser.

To roll into bars, as steel. To mill chocolate, to make it frothy, as by churning.

A frozen dessert of a frothy texture, made of sweetened and flavored whipped cream, sometimes with the addition of egg yolks and gelatin. Mousse differs from ice cream in being beaten before -- not during -- the freezing process.

A substance resembling starch, found in the green frothy scum formed on the surface of stagnant water.

Glass threads or fibers formed by the wind from bits blown from frothy lava or from the tips of lava jets or from bits of liquid lava thrown into the air. It often collects in thick masses resembling tow.

A little flat ring or wheel on horses' bits. The iron rowels into frothy foam he bit. Spenser.

A kind of catchfly (Silene inflata) which is sometimes frothy from the action of captured insects.

Frothy matter raised on liquids by boiling, effervescence, or agitation; froth; foam; scum. Materials dark and crude, Of spiritous and fiery spume. Milton.

Spumous; frothy. [Obs.]

Consisting of, containing, or covered with, froth, scum, or foam; frothy; foamy. The spumous and florid state of the blood. Arbuthnot. The spumy waves proclaim the watery war. Dryden.

The quality or state of being yeasty, or frothy.

Frothy; foamy; spumy, like yeast.