ign-, igni-, ignis-

(Latin: fire, burn)

A single-anode mercury-vapor rectifier in which current passes as an arc between the anode and a mercury-pool cathode, used in power recification.
Vomiting fire.
In girum imus nocte et consumimur igni.
We enter the circle after dark and are consumed by fire.

A Latin palindrome that describes the movement of moths.

piezo ignition
A type of ignition that is used in portable camping stoves.

It consists of a small, spring-loaded hammer which, when a button is pressed, hits a quartz crystal which produces a spark to ignite the gas. A piezo ignition system creates a spark to light the gas by triggering an impact upon a special crystal. No electric connection is required.

Piezo ignition systems can operate by either a lever, separate push button, or built into the control knob. Only one spark per turn of the knob or press of the button is generated.

preignition, pre-ignition
1. The ignition of the fuel mixture in a gasoline engine cylinder before normal ignition by the spark plug, typically caused by overheated plug points.

This results in an inefficient, rough-running engine.

2. Ignition of fuel in an internal-combustion engine before the spark has been generated, causing inefficient operation.

Preignition may be caused by a hot spot in the cylinder.

reignite, reignites, reignited, reigniting (verb forms)
1. Repeating the burning or starting of the fire: "While raking up more leaves, the strong wind reignited the cooling embers of the previous fire."
2. Starting a burning process or a fire again: "After the rain put out the burning of the brush in the field, the farmer was seen reigniting the piles of trash two days later."
3. To make something; such as, a disagreement or problem that was going away become stronger: "The recent food-poisoning scare has reignited the controversy as to what really caused of the recent E. coli (Escherichia coli) in Europe; especially, in Germany."

"There are fears that job losses will reignite a further dissatisfaction by the people."

re-ignition, reignition (s); re-ignitions, reignitions (pl) (noun forms)
1. A method for re-activating and controlling the combustion of fuel in an internal combustion engine again.
2. To arouse the passions of or to excite again: "His words caused the re-ignition of hatred for him."
3. The repetition of setting something on fire: "He ignited the brush earlier and it died down, and then, the wind caused the re-ignition of some of the limbs that were not completely burned."
spark-ignition combustion cycle, spark ignition combustion cycle; Otto cycle
1. A thermodynamic combustion cycle consisting of four processes that are used in mechanical engineering:
  • An air-fuel mixture is drawn into the cylinder and compressed.
  • Heat transfer is added by the spark ignition of the fuel mixture in the cylinder.
  • The gases produced by this combustion expand to move the piston downward for the power stroke.
  • The burned gases in the cylinder are expelled.
2. A thermodynamic process for the conversion of heat into work; for example, the sequential suction, compression, ignition, and expulsion in a four-stroke engine.

Named after Nikolaus August Otto (1832-1891), a German engineer and inventor.

Cross references of word groups that are related, directly, indirectly, or partly to: "fire, burn, glow, or ashes": ars-, ard-; -bust; cand-, cend-; caust-, caut-; crema-; ciner-; ether-; flagr-; flam-; focus, foci-; fulg-; gehenna-; phleg-; phlog-; pyreto-, -pyrexia; pyr-; spod- (ashes; waste); volcan-.