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

The Ode to Scallion highlights succulent French blue lobster with scallion-ginger sauce and foam made from French vin jaune and Chinese Shaoxing rice wine. — Eric Rosen, WSJ, "How Young Chefs Are Making Their Marks on Hong Kong’s Fine Food Scene," 10 Dec. 2018 Depending on the cause of your pain, this can include the various treatments mentioned above: working on strengthening your hips and quads, stretching your lower body, and using myofascial release techniques such as foam rolling on the tight spots. — SELF, "How to Know When It’s Safe to Run Through Knee Pain and When You Need to Stop," 7 Dec. 2018 Marking a departure from Ballard's early focus on string marionettes, these late-career shows combine actors with puppets of all sizes and forms, constructed from such novel materials as polyurethane foam. — Courant Community, "Community News For The Windham Edition," 10 July 2018 Jen Atkin's beloved Ouai brand has a handful of buzzy new launches, including an air-dry foam that could eliminate your need to pull out the blowdryer once this summer. — refinery29.com, "The 15 Best Hair Products To Buy At Sephora This Summer," 18 June 2018 Gone are the infamously heavy wooden frames; they've been replaced by foam. — Dylan Jackson, miamiherald, "The waterbed is making a comeback. No, really.," 7 June 2018 Kiwi, the startup that makes and manages the one hundred-strong fleet of robots, issued a statement to say that the fire was quickly extinguished by a passerby before the city’s fire department arrived and doused the machine in foam. — Jon Porter, The Verge, "Delivery robot spontaneously bursts into flames in California," 17 Dec. 2018 In 2019 Deuter will introduce the Kid Comfort Pro, which features an improved and adjustable version of the Aircomfort back system as well as a pivoting hip belt that employs dual-density foam for superior wrap. — Timothy Dahl, Popular Mechanics, "Hike With Your Kids Using These Child Carrier Backpacks," 28 Nov. 2018 This cream-to-foam formula is packed with natural fruit AHAs (alpha hydroxy acids) that work to break down and dissolve dry patches, excess oil, and flakes, leaving you with noticeably brighter and smoother skin. — Chloe Metzger, Marie Claire, "The 5 Truly Excellent Beauty Products I'm Loving This Week," 12 Sep. 2018

Recent Examples on the Web: Verb

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 When butter is foaming, lay in first steak and sear quickly, 1-2 minutes, before flipping and cooking reverse side 1 minute. — Charlotte Druckman, WSJ, "Steak Diane: So Retro, So Right Now," 7 June 2018 Graphic footage shot by rescuers and activists show victims of the attack -- including children -- dead and injured, some ghostly white and foaming at the mouth in makeshift clinics. — Sheena Mckenzie, CNN, "Syria 'chemical attack': 500 people affected, says WHO," 11 Apr. 2018 Years improve him; the effervescence of youth foamed away, what is really good in him still remains. — New York Times, "Letters to the Editor," 15 June 2018 This month, keep your agenda flexible, prioritizing those spontaneous desires of yours, like applying a foaming face-mask at midnight and taking weird selfies. — Catherine Urban, Bon Appetit, "It’s Barbecue Season, So Your June Horoscope Comes with a BBQ Side for Every Sign," 1 June 2018

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.