foaming
foam-ing
adjective
Covered in or producing a mass of small bubbles on a liquid's surface.
"We watched the foaming sea."
verb
The action of forming or emitting a mass of small bubbles on a liquid.
"The beer was foaming over."
Thesaurus
Synonyms: unhealthy, frothing, foamy, effervescent, bubbling, bubbly, effervescing, spumy, frothy