| 单词 | foam |
| 释义 | foam —foamable, adj. —foamer, n. —foamingly, adv. —foamless, adj. —foamlike, adj. /fohm/, n. 1. a collection of minute bubbles formed on the surface of a liquid by agitation, fermentation, etc.: foam on a glass of beer. 2. the froth of perspiration, caused by great exertion, formed on the skin of a horse or other animal. 3. froth formed from saliva in the mouth, as in epilepsy and rabies. 4. a thick frothy substance, as shaving cream. 5. (in firefighting) a. a chemically produced substance that smothers the flames on a burning liquid by forming a layer of minute, stable, heat-resistant bubbles on the liquid's surface. b. the layer of bubbles so formed. 6. a dispersion of gas bubbles in a solid, as foam glass, foam rubber, polyfoam, or foamed metal. 7. Literary. the sea. v.i. 8. to form or gather foam; emit foam; froth. v.t. 9. to cause to foam. 10. to cover with foam; apply foam to: to foam a runway before an emergency landing. 11. to insulate with foam. 12. to make (plastic, metal, etc.) into a foam. 13. foam at the mouth, to be extremely or uncontrollably angry. [bef. 900; ME fom, OE fam; c. G Feim] Syn. 1. froth, spume, head, fizz; scum. |
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