foaming

(verb) become bubbly or frothy or foaming. Synonyms: foam, froth, fizz, effervesce, sparkle, form bubbles. Examples: "The boiling soup was frothing." "The river was foaming." "Sparkling water."

(adj) emitting or filled with bubbles as from carbonation or fermentation. Synonyms: bubbling, bubbly, foamy, frothy, effervescing, spumy. Examples: "Bubbling champagne." "Foamy (or frothy) beer."

(adj) producing or covered with lathery sweat or saliva from exhaustion or disease. Synonyms: foamy, frothing. Example: "The rabid animal's frothing mouth."