- a chemically produced substance that smothers the flames on a burning liquid by forming a layer of minute, stable, heat-resistant bubbles on the liquid's surface.
- the layer of bubbles so formed.
verb (used without object)
verb (used with object)
Origin of foam
Synonyms for foam
Examples from the Web for foam
Contemporary Examples of foam
The best example of that would be my first year when Kevin Hart hosted, we wrote a sketch called “Foam Party.”How Aidy Bryant Stealthily Became Your Favorite ‘Saturday Night Live’ Star
October 31, 2014
Near the Mason jars are foam heads, the kind a showgirl uses to style her wigs.Best Career Arc Ever: From Burlesque To Bartending
September 13, 2014
They chew this thing, a real thing, they do this until they foam at the mouth.New York’s Tiniest—and Weirdest—Museum
May 29, 2014
For enthusiasm alone, he's awarded a draft with a two-inch head of foam.The Stacks: The Neville Brothers Stake Their Claim as Bards of the Bayou
John Ed Bradley
April 27, 2014
He thinks he is at the end of a great, sloppy ride falling backwards into the foam.Weed Gave My Family Everything—Then Took It Away
April 9, 2014
Historical Examples of foam
Blarney her cliverly, and work her to a foam against the McBrides.Tales And Novels, Volume 8 (of 10)
That tremendous hillside of foam is before my eyes night and day.One Day's Courtship
Nearly every dash of foam brought with it biting bits of seaweed now.The Cruise of the Dry Dock
T. S. Stribling
I think we have now got rid of the Foam, as well as of the gale.
The Foam put her helm down, and tacked beautifully to the south-east.
- any of a number of light cellular solids made by creating bubbles of gas in the liquid material and solidifying it: used as insulators and in packaging
- (as modifier)foam rubber; foam plastic
Word Origin for foam
Old English fam "foam, saliva froth," from West Germanic *faimo- (cf. Old High German veim, German Feim), from PIE *(s)poi-mo-, a root with connotations of "foam, froth" (cf. Sanskrit phenah; Latin pumex "pumice," spuma "foam;" Old Church Slavonic pena "foam;" Lithuanian spaine "a streak of foam"). The rubber or plastic variety so called from 1937.
Old English famgian "to foam," from the source of foam (n.). Related: Foamed; foaming.