foam

Từ điển Oxford Advanced Learner 8th

foam [foam foams foamed foaming] noun, verb BrE [fəʊm] NAmE [foʊm]
noun
1. (also ˌfoam ˈrubber)uncountable a soft light rubber material, full of small holes, that is used for seats, mattresses, etc
•a foam mattress
•foam packaging
2. uncountable a mass of very small air bubbles on the surface of a liquid
Syn: ↑froth
•a glass of beer with a good head of foam
•The breaking waves left the beach covered with foam.
3. uncountable, countable a chemical substance that forms or produces a soft mass of very small bubbles, used for washing, shaving, or putting out fires, for example
•shaving foam
•a bottle of bath foam
•The fire extinguisher directs foam onto the fire.

Word Origin:
Old English fām (noun), fǣman (verb), of West Germanic origin; related to Old High German feim (noun), feimen (verb).

Thesaurus:
foam noun U
•beer with a good head of foam
froth • • surf • • lather • • suds •
a head of foam/froth

Example Bank:
•She poured each of us a glass of beer with a good head of foam.
Idiom: ↑foam at the mouth
 
verb intransitive (of a liquid)
to have or produce a mass of small bubbles
Syn: ↑froth
•She looked down at the foaming white water.
•The toothpaste foamed in his mouth.
•tankards of foaming beer
Verb forms:

Word Origin:
Old English fām (noun), fǣman (verb), of West Germanic origin; related to Old High German feim (noun), feimen (verb).

Example Bank:
•He brought out a tray of foaming ice-cold beer.
•His mouth was full of foaming toothpaste.
•The dog started foaming at the mouth.

 

• Từ đồng nghĩa / Synonyms:
  froth, fizz, effervesce, sparkle, form bubbles