/frɒθ; US frɔ:θ ||; frɔθ/noun [U] a mass of small white bubbles on the top of a liquid, etc （液体等表面的）白色泡沫 ➔frothyadjfrothy beer 冒泡的啤酒 · a frothy cappuccino冒泡的卡普契诺咖啡
froth²
/frɒθ; US frɔ:θ ||; frɔθ/verb [I] to have or produce a mass of white bubbles 起泡沫: The mad dog was frothing at the mouth.那疯狗在吐白沫。