covered with or resembling small bubbles as from being agitated by beating or heating; "the bubbling candy mixture"; "a cup of foaming cocoa"; "frothy milkshakes"; "frothy waves"; "spumy surf"
emitting or filled with bubbles as from carbonation or fermentation; "bubbling champagne"; "foamy (or frothy) beer"
A foamy liquid has a mass of small bubbles on its surface or consists of a mass of bubbles. foamy waves Whisk the egg whites until they are foamy but not stiff. = frothy