a lightweight material in cellular form; made by introducing gas bubbles during manufacture
a mass of small bubbles formed in or on a liquid
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.
To gather foam; to froth; as, the billows foam.
To form foam, or become filled with foam;
To cause to foam; as,to foam the goblet; also (with out), to throw out with rage or violence, as foam.