2. Of a Bunsen or similar air-fed burner, to light so that the flame proceeds from the internal gas jet instead of from the external jet of mixed gas and air. -- Back"-fir`ing, n. [Webster 1913 Suppl.]

2. (a) A premature explosion in the cylinder of a gas or oil engine during the exhaust or the compression stroke, tending to drive the piston in a direction reverse to that in which it should travel; also called a knock or ping. (b) an explosion in the exhaust passages of an internal combustion engine. [ Webster 1913 Suppl. +PJC ]

Sweet Teviot! on thy silver tide
The glaring balefires blaze no more. Sir W. Scott. [ 1913 Webster ]

Full soon by bonfire and by bell,
We learnt our liege was passing well. Gay. [ 1913 Webster ]

☞ The form of fire exhibited in the combustion of gases in an ascending stream or current is called flame. Anciently, fire, air, earth, and water were regarded as the four elements of which all things are composed. [ 1913 Webster ]

2. Fuel in a state of combustion, as on a hearth, or in a stove or a furnace. [ 1913 Webster ]

3. The burning of a house or town; a conflagration. [ 1913 Webster ]

4. Anything which destroys or affects like fire. [ 1913 Webster ]

5. Ardor of passion, whether love or hate; excessive warmth; consuming violence of temper. [ 1913 Webster ]

he had fire in his temper. Atterbury. [ 1913 Webster ]

6. Liveliness of imagination or fancy; intellectual and moral enthusiasm; capacity for ardor and zeal. [ 1913 Webster ]

And bless their critic with a poet's fire. Pope. [ 1913 Webster ]

7. Splendor; brilliancy; luster; hence, a star. [ 1913 Webster ]

Stars, hide your fires. Shak. [ 1913 Webster ]

As in a zodiac
representing the heavenly fires. Milton. [ 1913 Webster ]

8. Torture by burning; severe trial or affliction. [ 1913 Webster ]

9. The discharge of firearms; firing; as, the troops were exposed to a heavy fire. [ 1913 Webster ]

Blue fire,
Red fire,
Green fire (Pyrotech.), compositions of various combustible substances, as sulphur, niter, lampblack, etc., the flames of which are colored by various metallic salts, as those of antimony, strontium, barium, etc. --
Fire alarm (a) A signal given on the breaking out of a fire. (b) An apparatus for giving such an alarm. --
Fire annihilator, a machine, device, or preparation to be kept at hand for extinguishing fire by smothering it with some incombustible vapor or gas, as carbonic acid. --
Fire balloon. (a) A balloon raised in the air by the buoyancy of air heated by a fire placed in the lower part. (b) A balloon sent up at night with fireworks which ignite at a regulated height. Simmonds. --
Fire bar, a grate bar. --
Fire basket, a portable grate; a cresset. Knight. --
Fire beetle. (Zool.) See in the Vocabulary. --
Fire blast, a disease of plants which causes them to appear as if burnt by fire. --
Fire box, the chamber of a furnace, steam boiler, etc., for the fire. --
Fire brick, a refractory brick, capable of sustaining intense heat without fusion, usually made of fire clay or of siliceous material, with some cementing substance, and used for lining fire boxes, etc. --
Fire brigade, an organized body of men for extinguished fires. --
Fire bucket. See under Bucket. --
Fire bug, an incendiary; one who, from malice or through mania, persistently sets fire to property; a pyromaniac. [ U.S. ] --
Fire clay. See under Clay. --
Fire company, a company of men managing an engine in extinguishing fires. --
Fire cross. See Fiery cross. [ Obs. ] Milton. --
Fire damp. See under Damp. --
Fire dog. See Firedog, in the Vocabulary. --
Fire drill. (a) A series of evolutions performed by fireman for practice. (b) An apparatus for producing fire by friction, by rapidly twirling a wooden pin in a wooden socket; -- used by the Hindoos during all historic time, and by many savage peoples. --
Fire eater. (a) A juggler who pretends to eat fire. (b) A quarrelsome person who seeks affrays; a hotspur. [ Colloq. ] --
Fire engine, a portable forcing pump, usually on wheels, for throwing water to extinguish fire. --
Fire escape, a contrivance for facilitating escape from burning buildings. --
Fire gilding (Fine Arts), a mode of gilding with an amalgam of gold and quicksilver, the latter metal being driven off afterward by heat. --
Fire gilt (Fine Arts), gold laid on by the process of fire gilding. --
Fire insurance, the act or system of insuring against fire; also, a contract by which an insurance company undertakes, in consideration of the payment of a premium or small percentage -- usually made periodically -- to indemnify an owner of property from loss by fire during a specified period. --
Fire irons, utensils for a fireplace or grate, as tongs, poker, and shovel. --
Fire main, a pipe for water, to be used in putting out fire. --
Fire master (Mil), an artillery officer who formerly supervised the composition of fireworks. --
Fire office, an office at which to effect insurance against fire. --
Fire opal, a variety of opal giving firelike reflections. --
Fire ordeal, an ancient mode of trial, in which the test was the ability of the accused to handle or tread upon red-hot irons. Abbot. --
Fire pan, a pan for holding or conveying fire, especially the receptacle for the priming of a gun. --
Fire plug, a plug or hydrant for drawing water from the main pipes in a street, building, etc., for extinguishing fires. --
Fire policy, the writing or instrument expressing the contract of insurance against loss by fire. --
Fire pot. (a) (Mil.) A small earthen pot filled with combustibles, formerly used as a missile in war. (b) The cast iron vessel which holds the fuel or fire in a furnace. (c) A crucible. (d) A solderer's furnace. --
Fire raft, a raft laden with combustibles, used for setting fire to an enemy's ships. --
Fire roll, a peculiar beat of the drum to summon men to their quarters in case of fire. --
Fire setting (Mining), the process of softening or cracking the working face of a lode, to facilitate excavation, by exposing it to the action of fire; -- now generally superseded by the use of explosives. Raymond. --
Fire ship, a vessel filled with combustibles, for setting fire to an enemy's ships. --
Fire shovel, a shovel for taking up coals of fire. --
Fire stink, the stench from decomposing iron pyrites, caused by the formation of hydrogen sulfide. Raymond. --
Fire surface, the surfaces of a steam boiler which are exposed to the direct heat of the fuel and the products of combustion; heating surface. --
Fire swab, a swab saturated with water, for cooling a gun in action and clearing away particles of powder, etc. Farrow. --
Fire teaser, in England, the fireman of a steam emgine. --
Fire water, a strong alcoholic beverage; -- so called by the American Indians. --
Fire worship, the worship of fire, which prevails chiefly in Persia, among the followers of Zoroaster, called Chebers, or Guebers, and among the Parsees of India. --
Greek fire. See under Greek. --
On fire, burning; hence, ardent; passionate; eager; zealous. --
Running fire, the rapid discharge of firearms in succession by a line of troops. --
St. Anthony's fire, erysipelas; -- an eruptive fever which St. Anthony was supposed to cure miraculously. Hoblyn. --
St. Elmo's fire. See under Saint Elmo. --
To set on fire, to inflame; to kindle. --
To take fire, to begin to burn; to fly into a passion. [ 1913 Webster ]

2. To subject to intense heat; to bake; to burn in a kiln; as, to fire pottery. [ 1913 Webster ]

3. To inflame; to irritate, as the passions; as, to fire the soul with anger, pride, or revenge. [ 1913 Webster ]

Love had fired my mind. Dryden. [ 1913 Webster ]

4. To animate; to give life or spirit to; as, to fire the genius of a young man. [ 1913 Webster ]

5. To feed or serve the fire of; as, to fire a boiler. [ 1913 Webster ]

6. To light up as if by fire; to illuminate. [ 1913 Webster ]

[ The sun ] fires the proud tops of the eastern pines. Shak. [ 1913 Webster ]

7. To cause to explode; as, to fire a torpedo; to disharge; as, to fire a rifle, pistol, or cannon; to fire cannon balls, rockets, etc. [ 1913 Webster ]

8. To drive by fire. [ Obs. ] [ 1913 Webster ]

Till my bad angel fire my good one out. Shak. [ 1913 Webster ]

9. (Far.) To cauterize. [ 1913 Webster ]

10. to dismiss from employment, a post, or other job; to cause (a person) to cease being an employee; -- of a person. The act of firing is usually performed by that person's supervisor or employer. “You can't fire me! I quit!” [ PJC ]

To fire up, 1. to light up the fires of, as of an engine; also, figuratively, to start up any machine. -- 2. to render enthusiastic; -- of people. [ 1913 Webster +PJC ]

2. To be irritated or inflamed with passion. [ 1913 Webster ]

3. To discharge artillery or firearms; as, they fired on the town. [ 1913 Webster ]

To fire up, to grow irritated or angry. “He . . . fired up, and stood vigorously on his defense.” Macaulay. [ 1913 Webster ]

2. A rare phenomenon often associated with or caused by lightning, resembling a luminous ball of fire passing rapidly through the air or along solid objects, then disappearing, and sometimes exploding. It seldom lasts more than a few seconds. Also called ball lightning, globe lightning, globular lightning, or kugelblitz. [ Webster 1913 Suppl. +PJC ]

3. A large mass of fire caused by a large explosion, as of inflammable liquids or a nuclear device. The larger fireballs, as of nuclear explosions, rise seemingly intact into the air and may reach high altitudes while still glowing. [ PJC ]

2. One who inflames factions, or causes contention and mischief; an incendiary. Bacon. [ 1913 Webster ]

2. a brightly colored type of true bug that can exude a stain. [ WordNet 1.5 ]

2. A densely branched Eurasian plant (Bassia scoparia) whose foliage turns purple-red in autumn; also called burning bush.
Syn. -- summer cypress, burning bush, belvedere, Bassia scoparia, Kochia scoparia. [ WordNet 1.5 ]

2. A fiery meteor; an ignis fatuus; a rocket. [ 1913 Webster ]

3. A worker at a furnace or fire. B. Jonson. [ 1913 Webster ]

☞ The common American species belong to the genera Photinus (especially Photinus pyralis) and Photuris, in which both sexes are winged. The name is also applied to luminous species of Elateridæ. See Fire beetle. [ 1913 Webster +PJC ]

2. A man who tends the fires, as of a steam engine; a stocker. [ 1913 Webster ]

Your fire-new stamp of honor is scarce current. Shak. [ 1913 Webster ]