foam Meaning, Definition & Usage

  1. noun a mass of small bubbles formed in or on a liquid
    froth.
    • the beer had a thick head of foam
  2. noun a lightweight material in cellular form; made by introducing gas bubbles during manufacture
  3. verb become bubbly or frothy or foaming
    froth; effervesce; sparkle; form bubbles; fizz.
    • The boiling soup was frothing
    • The river was foaming
    • Sparkling water

WordNet

Foam noun
Etymology
OE. fam, fom, AS. f?m; akin to OHG. & G. feim.
Definitions
  1. The white substance, consisting of an aggregation of bubbles, which is formed on the surface of liquids,or in the mouth of an animal, by violent agitation or fermentation; froth; spume; scum; as, the foam of the sea.
Foam intransitive verb
Etymology
AS. f?man. See Foam, n.
Wordforms
imperfect & past participle Foamed present participle & verbal noun pos> Foaming
Definitions
  1. To gather foam; to froth; as, the billows foam.
    He foameth, and gnasheth with his teeth. Mark ix. 18.
  2. . To form foam, or become filled with foam; -- said of a steam boiler when the water is unduly agitated and frothy, as because of chemical action.
Foam transitive verb
Definitions
  1. To cause to foam; as,to foam the goblet; also (with out), to throw out with rage or violence, as foam. "Foaming out their own shame."
    Jude 13.

Webster 1913