foam /ˈfom/
  泡沫,水沫,泡沫材料(vi.)起泡沫,吐白沫(vt.)使起泡沫
  foam /ˈfom/ 名詞
  泡沫,泡沫材料,泡沫狀物,泡沫橡皮,泡沫塑料,起泡沫
  Foam n.  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 cock, in steam boilers, a cock at the water level, to blow off impurities.
  Foam v. i. [imp. & p. p. Foamed p. pr. & vb. n. Foaming.]
  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 v. t. 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.
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  foam
       n 1: a mass of small bubbles formed in or on a liquid [syn: froth]
       2: a lightweight material in cellular form; made by introducing
          gas bubbles during manufacture
       v : form bubbles; "The boiling soup was frothing"; "The river
           was foaming"; "Sparkling water" [syn: froth, fizz, effervesce,
            sparkle]
  Foam
     (Hos. 10:7), the rendering of _ketseph_, which properly means
     twigs or splinters (as rendered in the LXX. and marg. R.V.). The
     expression in Hosea may therefore be read, "as a chip on the
     face of the water," denoting the helplessness of the piece of
     wood as compared with the irresistable current.