froth

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froth at the mouth

1. Literally, to produce foam from one's mouth, as due to a disease or other ailment. All of a sudden she collapsed in a fit, convulsing and frothing at the mouth.
2. Figuratively, to be viciously and uncontrollably angry or upset. The protesters had formed outside the courthouse, frothing at the mouth as the alleged murderer made his way up the steps.
See also: froth, mouth

foam at the mouth

 
1. Lit. to create froth or foam around the mouth, as with some diseases. The poor dog was foaming at the mouth and looked quite dangerous. What does it mean when a cow foams at the mouth?
2. Fig. to be extraordinarily angry. She was almost foaming at the mouth when she heard about the cost of the car repairs. Walter was foaming at the mouth with rage.
See also: foam, mouth

froth something up

to whip or aerate something until it is frothy. Froth the milk up before you add it to the sauce. Froth up the milk before you pour it in.
See also: froth, up

froth up

[for something] to build up a froth when whipped, aerated, or boiled. The mixture began to froth up as Dan beat it. The milk frothed up as the steam went through it.
See also: froth, up

foam at the mouth

Be extremely angry, as in She was foaming at the mouth over the judge's ruling. This hyperbolic term uses the verb foam in the sense of "froth at the mouth," a usage generally applied to animals such as horses and dating from about a.d. 950. [1400s]
See also: foam, mouth

foam at the mouth

or

froth at the mouth

1. If someone foams at the mouth or froths at the mouth, they are very angry. Stewart was still foaming at the mouth about the incident when we spoke. The mere mention of `political correctness' is enough to cause journalists to froth at the mouth.
2. If someone foams at the mouth or froths at the mouth, they are very excited about something. The news that the team's top player is up for sale at the end of the season has got Premier League bosses foaming at the mouth in excitement. A new vintage home store has got A-list celebrities frothing at the mouth with excitement. Note: To foam or froth at the mouth literally means to produce a lot of foam or froth in the form of saliva. This is associated especially with having the disease rabies.
See also: foam, mouth

froth up

v.
1. To become frothy or foamy: The vinegar quickly frothed up when I added the baking soda.
2. To cause something to become frothy or foamy: The spinning blades of the blender frothed up the juice. You need to stir vigorously in order to froth the sauce up.
See also: froth, up

froth

n. a beer. How about another pitcher of frost, innkeeper?
References in periodicals archive ?
Washwater is commonly added to the top of froths in flotation columns to aid gangue rejection from the concentrate, and the effects of this upon the liquid fraction of the foam can be calculated using the theory of Stevenson (2006b, 2007a); this theory has been experimentally verified by Ireland and Jameson (2007).
bubbly liquid) and froth phases, and the colloidal interactions between particles and bubbles.
Froth floatation is a process used to selectively separate hydrophobic minerals suspended in a solution by attaching them to gas bubbles and transferring into the froth layers.
The researchers have also observed a dramatic "melting" transition, in which a front sweeps through an orderly lattice of magnetized cells, leaving behind a disordered magnetic froth.
In these processes, hot or warm water is added to oil sands to form a slurry from which bitumen is liberated from the sand grains and recovered as bitumen froth by flotation (Masliyah et al.
The machine also has a patented siphoning system lets the user control the milk and coffee portions, to create any size of cappuccino or latte with as little or as much froth as desired - one after the other with no downtime.
Scientists make froths easier to study by pressing them between transparent plates into two-dimensional jigsaws of polygons.
Buoyancy-driven flows, which are a good example of non-uniform flow mechanisms, are frequently observed in froths when wash liquid is added, producing a large slip velocity between the two phases (Ireland and Jameson, 2007b; Vera et al.
Coming this fall is De'Longhi's Magnifica Automatic Cappuccino Maker EAM3500, which grinds beans, brews espresso and also froths milk, all with one touch.
The mini-s frother steams or froths milk either in a pitcher or right in the cup.
Such observations have led metallurgiststo use soap froths as a rough model for a metal's grain structure.
The Acorto automatically grinds fresh whole beans, steams and froths fresh milk and delivers a freshly brewed espresso drink in less than a minute.
The column froths are relatively wet (higher liquid content) compared to conventional foams.
Using a unique patented frothing disk, the unit froths automatically with a quick touch of a button, creating foamed or steamed milk with perfect consistency.
The largest capacity automatic milk frother on the market, it froths up to 10 ounces of milk or steams up to 16 ounces, for a wide variety of hot or cold beverages or even food preparation techniques.