ign-, igni-, ignis-

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.

We enter the circle after dark and are consumed by fire.

A Latin palindrome that describes the movement of moths.

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.

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.

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."

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."

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.