1 [U] a mass of small bubbles, especially on the surface of a liquid
SYNFOAM:
a glass of beer with thick froth on top * The horse's bit was covered with white froth.
2 [U] ideas, activities, etc. that seem attractive and enjoyable but have no real value
3 [sing.] ~ of sth something that looks like a mass of small bubbles on liquid:
a froth of black lace
词性: verb
1 if a liquid froths, or if sb/sth froths it, a mass of small bubbles appears on the surface:
[V] a cup of frothing coffee * The water gushed and frothed. [also VN]
2 [V] to produce a lot of SALIVA (= liquid in your mouth):
The dog was frothing at the mouth. * (figurative) He frothed at the mouth (= was very angry) when I asked for more money.
