foam

noun

\ ˈfōm

Definition of foam

(Entry 1 of 2)

1 : a light frothy mass of fine bubbles formed in or on the surface of a liquid or from a liquid: such as

a : a frothy mass formed in salivating or sweating

b : a stabilized froth produced chemically or mechanically and used especially in fighting oil fires

c : a material in a lightweight cellular form resulting from introduction of gas bubbles during manufacture

2 : sea

3 : something resembling foam

foam

verb

foamed; foaming; foams

Definition of foam (Entry 2 of 2)

intransitive verb

1a : to produce or form foam

b : to froth at the mouth especially in anger broadly : to be angry

2 : to gush out in foam

3 : to become covered with or as if with foam streets … foaming with life— Thomas Wolfe

transitive verb

1 : to cause to foam specifically : to cause air bubbles to form in

2 : to convert (something, such as a plastic) into a foam

Other Words from foam Synonyms More Example Sentences Learn More about foam

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Other Words from foam

Noun

foamless \ ˈfōm-ləs

\ adjective

Verb

foamable \ ˈfō-mə-bəl

\ adjective

foamer \ ˈfō-mər

\ noun

Synonyms for foam

Synonyms: Noun

froth, head, lather, spume, suds, surf

Synonyms: Verb

boil, burn, fume, rage, rankle, seethe, sizzle, steam, storm

Examples of foam in a Sentence

Noun

As I poured the beer, foam bubbled up in the glass. The fire extinguisher is filled with foam. a can of shaving foam

Verb

The soda foamed in the glass. The mixture will bubble and foam when you add the yeast.

Recent Examples on the Web: Noun

Whitney Wolfe Herd opens the double doors of her suite at the Oberoi Hotel in New Delhi in a hotel bathrobe, her face hidden beneath a sea foam–green beauty mask. — Chloe Malle, Vogue, "Inside Dating-App Bumble’s Bid For Global Domination," 18 Apr. 2019 Jake wasn't bummed out for long, though — Inside Edition set him up with fellow Sports Illustrated swimsuit model Nina Agdal, who wore a pretty, sea foam halter gown for the occasion. 5. — Jasmine Gomez, Seventeen, "10 Epic Celebrity Promposals You Need to See Now," 11 Apr. 2019 The cleanser, which counts sulfur, salicylic acid, and glycolic acid as key ingredients, has a creamy consistency that lathers into a soft foam to offer a thorough cleanse. — Karina Hoshikawa, Allure, "Exclusive: M-61 Is Launching a Cleanser and Moisturizer for Adult Acne," 11 Mar. 2019 Washington became the first state to ban any firefighting foam with the compounds. — Susan Montoya Bryan, The Seattle Times, "New Mexico concerned about contamination at US air base," 16 Oct. 2018 October 2018’s love language whips and froths our deepest desires into a delicious foam. — Bess Matassa, Teen Vogue, "Monthly Lovescopes October 2018," 3 Oct. 2018 A dozen craft beers and a handful of clever cocktails (there’s a nice take on a Cuba libre that employs concentrated cola foam) complete the beverage program. — Phil Vettel, chicagotribune.com, "Review: Sky's the limit with ambitious Santo Cielo," 18 May 2018 PranaSleep Latex Mattresses are made of multiple layers of latex foam, covered with a breathable quilted topper. — Elizabeth Gulino, House Beautiful, "Oprah Winfrey and Serena Williams Swear By This Mattress," 12 Mar. 2019 Generally, any shoe made with EVA, a rubbery plastic that's used to create soft and flexible foam, should always be hand washed. — Isadora Baum, SELF, "Here’s How to Clean Sneakers Depending on the Material," 17 Feb. 2019

Recent Examples on the Web: Verb

The resulting wall treatment creates an ever-so-subtle nod to bubbles foaming from a bath, a motif the designer repeated with a globe pendant and sconces from Visual Comfort. — Hadley Keller, House Beautiful, "Creative Tile Turns a Scary '90s Bathroom Into a Fresh, Fun Space," 27 Feb. 2019 Additionally, foaming cleansers, gels, and shaving creams can also exacerbate dryness, so stick to cleansers that hydrate. 7. — Talia Abbas, SELF, "11 Tips for How to Treat Eczema During the Winter," 7 Jan. 2019 The footage of the foaming water illuminated by glowing green lights also suggests this was taken at sea. — Kyle Mizokami, Popular Mechanics, "Russia Releases Test Video of Poseidon Nuclear Attack Drone," 22 Feb. 2019 Their gel and foaming soap, featuring artwork by four of the organization’s artists, will grace Target shelves across the country starting February 4. — Michaela Bechler, Vogue, "Method Soap Bottles Get a Colorful Makeover Thanks to Oakland’s Creative Growth Art Center," 5 Feb. 2019 The Beauty Smartie shares her fave, yummy-smelling body washes and foaming soaps! — Seventeen, "Alexis' Bath and Body Haul Video," 3 Oct. 2011 Set to a minimalist soundtrack of guitar strumming and engine rumbling, the video treats us to a view of the Salt Lake City skyline at sunset before moving on to pleasing closeups of bubbles foaming up as the coffee is filtered through the machine. — Vlad Savov, The Verge, "This tilting kettle will make your coffee-loving friends livid," 20 Aug. 2018 Her dad, who was not identified, jumped in the water to help, but the girl was foaming at the mouth and wasn’t moving. — Alexandria Hein, Fox News, "Nurse reunites with girl she saved from nearly drowning at apartment complex pool," 18 July 2018 When the butter's foaming subsides, add the lobster meat to the pan. — Alex Hitz, House Beautiful, "Lobster Bisque from Alex Hitz," 14 Nov. 2013

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'foam.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.