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

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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

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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.
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Recent Examples on the Web: Noun

Matcha — the superfine powder made from ground-up green tea leaves — is so much more than a dreamy, sea foam alternative to a cup of joe often spotted on Instagram. Sarah Kinonen, Allure, "12 Skin-Care Products Infused With Matcha Green Tea," 23 Oct. 2018 To re-create, simply roll out the clay and cut into circles using a cookie cutter or knife. Poke two eyeholes and drape over foam craft balls or ping pong balls to dry. Taysha Murtaugh, Country Living, "Dollar-Store Tea Lights Make the Most Boo-tiful Halloween Ghosts Ever," 2 Oct. 2018 Kids scaled the foam walls and built forts out of square cushions. Diana Budds, Curbed, "Play it forward," 18 July 2018 To add a beachy-vibe to her crisp, white bedroom in California, designer Carolyn Espley-Miller hung an old sea-foam barn door above her bed. House Beautiful, "Top Pin of the Day: A Coastal Bedroom," 1 Oct. 2013 Jenny chose an aqua and beige ocean theme for their cabin — decorating with glass floats, a sea-foam green wreath and tiny seashells for cabinet drawer pulls. Evan Bush, The Seattle Times, "‘The Property’: A family’s getaway cabin defined its dreams, until a tragic Sunday morning," 24 Sep. 2018 Mismatched Windsor chairs are anchored by a table, the set united with sea-foam paint. Amy Merrick, WSJ, "The Cultish Home That Draws Fans of Americana Design," 3 Aug. 2018 Stepping into Zippy’s is like being home, if home had sea-foam-green leather booths. Elyse Inamine, Bon Appetit, "In Hawaii, Nothing Says You’re Home Like Mac Salad," 6 June 2018 The minimal palette of white, black, and pops of lilac, peach, sea foam, and icy blue. The Cut, "Max Mara Brought Their Resort Show Back Home," 5 June 2018

Recent Examples on the Web: Verb

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 Then breathing becomes laboured and people start salivating and then foaming at the mouth. Ciara Nugent, Time, "'There Will Be Severe Pain.' What to Know About the New Novichok Nerve Agent Poisoning in the U.K.," 5 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.

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First Known Use of foam

Noun

before the 12th century, in the meaning defined at sense 1

Verb

before the 12th century, in the meaning defined at intransitive sense 1a

History and Etymology for foam

Noun

Middle English fome, from Old English fām; akin to Old High German feim foam, Latin spuma foam, pumex pumice

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Statistics for foam

Last Updated

19 Nov 2018

Look-up Popularity

Time Traveler for foam

The first known use of foam was before the 12th century

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More Definitions for foam

foam

noun

English Language Learners Definition of foam

 (Entry 1 of 2)

: a mass of small bubbles that are formed in or on a liquid

: a substance that is like a thick liquid made of many small bubbles

: a soft material that is used to make many products

foam

verb

English Language Learners Definition of foam (Entry 2 of 2)

: to produce foam

foam

noun
\ˈfōm \

Kids Definition of foam

 (Entry 1 of 2)

: a mass of tiny bubbles that forms in or on the surface of a liquid

foam

verb
foamed; foaming

Kids Definition of foam (Entry 2 of 2)

: to produce or form a mass of tiny bubbles Baking soda will foam when you add vinegar.

foam

noun
\ˈfōm \

Medical Definition of foam 

: a light frothy mass of fine bubbles formed in or on the surface of a liquid spermicidal foam

Other Words from foam

foam verb

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Comments on foam

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noxious or harmful

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