foamy

Something that's foamy is frothy, or full of tiny air bubbles. A cake recipe might instruct you to beat three eggs until they're foamy.

A mug of root beer is foamy on top, and waves on a beach have a bubbly, foamy appearance too. A handful of shaving cream is foamy, and so is a dollop of whipped cream on top of your ice cream sundae. Foamy comes from the Old English faemig, "covered with foam," from fam, which means both "foam" and "the sea" in Old English.

Definitions of foamy
  1. adjective
    emitting or filled with bubbles as from carbonation or fermentation
    foamy (or frothy) beer”
    synonyms: bubbling, bubbly, effervescing, foaming, frothy, spumy
    effervescent
    (of a liquid) giving off bubbles
  2. adjective
    producing or covered with lathery sweat or saliva from exhaustion or disease
    synonyms: foaming, frothing
    unhealthy
    not in or exhibiting good health in body or mind
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