/boyl/, v.i.1. to change from a liquid to a gaseous state, producing bubbles of gas that rise to the surface of the liquid, agitating it as they rise.2. to reach or be brought to the boiling point: When the water boils, add the meat and cabbage.3. to be in an agitated or violent state: The sea boiled in the storm.4. to be deeply stirred or upset.5. to contain, or be contained in, a liquid that boils: The kettle is boiling. The vegetables are boiling.v.t.6. to cause to boil or to bring to the boiling point: Boil two cups of water.7. to cook (something) in boiling water: to boil eggs.9. boil down,a. to reduce the quantity of by boiling off liquid.b. to shorten; abridge.c. to be simplifiable or summarizable as; lead to the conclusion that; point: It all boils down to a clear case of murder.10. boil off, Textiles.a. to degum (silk).b. to remove (sizing, wax, impurities, or the like) from a fabric by subjecting it to a hot scouring solution. Also, boil out.11. boil over,a. to overflow while boiling or as if while boiling; burst forth; erupt.b. to be unable to repress anger, excitement, etc.: Any mention of the incident makes her boil over.n.12. the act or an instance of boiling.13. the state or condition of boiling: He brought a kettle of water to a boil.14. an area of agitated, swirling, bubbling water, as part of a rapids.15. Also called blow. Civ. Engin. an unwanted flow of water and solid matter into an excavation, due to excessive outside water pressure.[1250-1300; ME boillen < AF, OF boillir < L bullire to bubble, effervesce, boil, v. deriv. of bulla bubble]Syn. 3. foam, churn, froth. 4. rage. BOIL, SEETHE, SIMMER, STEW are used figuratively to refer to agitated states of emotion. To BOIL suggests the state of being very hot with anger or rage: Rage made his blood boil. To SEETHE is to be deeply stirred, violently agitated, or greatly excited: A mind seething with conflicting ideas. To SIMMER means to be on the point of bursting out or boiling over: to simmer with curiosity, with anger. To STEW is to worry, to be in a restless state of anxiety and excitement: to stew about (or over) one's troubles.boil2/boyl/, n. Pathol.a painful, circumscribed inflammation of the skin or a hair follicle, having a dead, suppurating inner core: usually caused by a staphylococcal infection. Also called furuncle.
* * *Inflamed pus-filled swelling due to staphylococcus skin infection at a hair follicle.It is painful and feels hard. Boils usually occur in hairy areas exposed to friction and maceration. Scratching an existing skin disorder may introduce staphylococci on the skin into hair follicles and cause a boil to arise. A carbuncle occurs when several adjoining boils merge. Healing requires discharging the pus. Treatment involves antibiotics.
* * *▪ skin infectionalso called Furuncle, or Furunculosis,a staphylococcus skin infection characterized by an inflamed nodular swelling filled with pus, located at the site of a hair follicle. The lesion is painful and feels hard to the touch; healing begins after the pus is discharged. Boils are usually located in hairy body areas exposed to friction and maceration, such as the back of the neck, the face, armpits, buttocks, and groin. A sty is a boil located at the base of an eyelash. A carbuncle is an aggregation of adjoining boils with several centers of pus collection.Existing skin disorders that lead to scratching may favour the entrance of the staphylococci into hair follicles, with resulting boil formation. Any general lowered state of health may also predispose individuals to furunculosis, although the condition also affects healthy people. Some individuals seem more susceptible to boils than others, and in them the boils tend to recur. Ordinarily treatment is unnecessary, other than the use of measures to keep the affected area clean and protected from further infection. In more severe cases, antibiotics are usually effective. When boils occur in a patient at a hospital in which penicillin-resistant staphylococcal infections are endemic, they may constitute a serious medical problem, particularly when the patients are aged or debilitated.
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