Definition of Ignition

1. Noun. The process of initiating combustion or catching fire.

Generic synonyms: Fire, Flame, Flaming
Specialized synonyms: Spontaneous Combustion
Derivative terms: Ignite

2. Noun. The mechanism that ignites the fuel in an internal-combustion engine.

3. Noun. The act of setting something on fire.
Exact synonyms: Firing, Inflammation, Kindling, Lighting
Generic synonyms: Burning, Combustion
Derivative terms: Ignite, Ignite, Inflame, Inflame, Kindle

Definition of Ignition

1. n. The act of igniting, kindling, or setting on fire.

Definition of Ignition

1. Noun. The act of igniting. ¹

2. Noun. The initiation of combustion. ¹

3. Noun. A system for activating combustion in a combustion engine. ¹

¹ Source:

Definition of Ignition

1. the act of igniting [n -S]

Medical Definition of Ignition

1. In fusion, as in an ordinary (chemical) fire, ignition is the point where the temperature and confinement of heat in the fuel (plasma in the case of fusion) are such that energy released from ongoing reactions is sufficient to maintain the temperature of the system, and no external heating is needed. An ignited fusion plasma produces so much energy from fusion reactions that the plasma is fully heated by fusion reaction products (alpha particles in the case of D-T fusion), and the plasma no longer needs any external source of power to maintain its temperature. (The plasma may, however, still need something to maintain its confinement, this gives us control over the fusion reaction and helps prevent fusion reactors from having meltdown problems like fission reactors.) (09 Oct 1997)

Lexicographical Neighbors of Ignition

ignis fatuus
ignition (current term)
ignition coil
ignition key
ignition lock
ignition switch
ignition system
ignition temperature
ignition temperatures

Literary usage of Ignition

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Gasoline Automobile by George William Hobbs (1915)
"Magneto ignition.—It is a somewhat common idea that an engine will run ... This contention has been frequently advanced in support of magneto ignition. ..."

2. Dyke's Automobile and Gasoline Engine Encyclopedia by Andrew Lee Dyke (1916)
"28-A DELCO ignition SYSTEMS: Early Form of Relay System. Distributor and Timer Development. Automatic Advance of Spark. The Modern Delco ignition. ..."

3. Bulletin by Federal Board for Vocational Education, United States (1917)
"Trace the primary circuit on a battery ignition system. 252. ... Explain the procedure in testing out a modern battery ignition distributor system. 266. ..."

4. Report of the Annual Meeting (1892)
"It can be shown, however, that the coals most liable to spontaneous ignition often contain as little as 0-8 per cent, of pyrites, and rarely more than 2 per ..."

5. Journal of the American Chemical Society by American Chemical Society (1895)
"Extreme care must be exercised in the ignition, both in the ... In order to avoid the errors which might arise from such ignition, and, in fact, ..."

6. Manual of Qualitative Chemical Analysis by C. Remigius Fresenius, Samuel William Johnson (1874)
"ignition. ignition is, in a certam measure, for solid bodies what evaporation is ... The process of ignition always presupposes the application of a high ..."

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