WordWeb Online

1. Producing or covered with lathery sweat or saliva from exhaustion or disease
   "the rabid animal's foamy mouth";
   - foaming, frothing
    
2. Emitting or filled with bubbles as from carbonation or fermentation
   "foamy (or frothy) beer";
   - bubbling, bubbly, foaming, frothy, effervescing, spumy

Derived forms: foamier, foamiest

See also: effervescent, unhealthy

Encyclopedia: Foamy