noun
foam
fohm
noun
1
A mass of small bubbles formed on or in a liquid, such as sea spray, soapy water, or the head on a drink.
"Foam gathered along the shoreline after the storm."
"She wiped the foam from her cappuccino off her lip."
2
A lightweight solid material made of trapped gas bubbles, used for cushioning, insulation, or floating.
"The mattress was made of memory foam."
verb
1
To produce or become covered in foam.
"The washing machine foamed over when too much detergent was added."
How to Use Foam
Learner’s notesIn plain EnglishBubbly froth on a liquid, or a spongy man-made material full of trapped air.
Common pairings
sea foam
foam mattress
foam at the mouth
shaving foam
Word Forms
foamed past tense, foams plural, foams singular
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_____ gathered along the shoreline after the storm.
Etymology
From Old English fām, an old Germanic word related to German Feim and distantly to Latin spuma ("foam").