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

These upholstered chairs are modern and structured, but don't sacrifice comfort, thanks to a foam-padded seat your guests can relax in no matter how late the party goes. — Brigitt Earley, Good Housekeeping, "12 Items That'll Make You Want to Eat in Your Dining Room Again," 21 May 2019 May 24 through May 27, get a Beautyrest queen foam mattress for just $99 (50 percent off). — Brittney Morgan, House Beautiful, "The Best Memorial Day Sales of 2019, From Mattresses to Appliances," 21 May 2019 The sandals are designed with an EVA foam midsole, rubber outsole for traction, and a quick-dry footbed, which makes them the perfect companion for basically any summer activity. — Tiffany Dodson, SELF, "The New Teva x Outdoor Voices Collection Will Make You Actually Want to Wear Pool Shoes," 17 May 2019 The foam core insulation surrounding the Mantis is designed to be recycled in 30 years. — Blake Z. Rong, Popular Mechanics, "RVs Are More Efficient Than Ever, Thanks to Eco-Friendly Manufacturing," 15 May 2019 The dealership reached out to Mazda Canada and was able to source new seat covers and foam for the driver's seat. — Joey Capparella, Car and Driver, "A Mazda Dealer Surprised a Loyal Customer by Refurbishing His First-Gen MX-5 Miata's Seats for Free," 11 May 2019 After an inspection found a small strip of foam inside the Delta IV Heavy rocket nose cone covering the spacecraft, managers delayed the launch of the $1.5 billion Parker Solar Probe from August 6 to August 11. — Eric Berger, Ars Technica, "Rocket Report: SpaceX doubles up, European resistance, condensed Kármán," 27 July 2018 Sputum, blood, and saliva mixed, brought up from the lungs like sea foam, spotting my father’s beard, his chest, the morphine pump with frothy patches the color of lettuce. — Ellen Wayland-smith, Longreads, "Death Rattle: The Body’s Betrayals," 21 Mar. 2018 Painting the place — multiple times, including a coat of sea foam green and one of primary blue — helped, as did cooking elaborate recipes from Bon Appétit. — Anndee Hochman, Philly.com, "The Parent Trip: Kristen Shahverdian and Lisa Gochee of Point Breeze," 9 Jan. 2018

Recent Examples on the Web: Verb

Stick with gel or foaming cleansers rather than oils and balms, which leave a residue that can prevent toners from absorbing, says Mattioli. — New York Times, "How to Exfoliate, Without Damaging Your Skin," 29 May 2018 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

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.