I think you have a typographical error in your question. The question I believe is "What is a compression ignition engine?"
The answer is:- A diesel engine is a compression ignition engine.
Compression ignition is deisel. Otherwise, spark ignition is gasoline.
No, the steam engine is an external combustion engine because the steam is heated by heat generated by combustion outside externally through heat transfer. A spark ignition engine is an example of an internal combustion engine.
Compression
you cut off the ignition spark in a petrol engine
you cut off the ignition spark in a petrol engine
a gasoline engine is an Internal combustion engine
When the engine detonates its referring to the engine giving spark to the compressed air/fuel in the cylinder, when theres combustion its simply the explosion that happens after ignition.
The stage that occurs just before ignition in an internal combustion engine is the compression stroke. During this stage, the piston moves upward in the cylinder, compressing the air-fuel mixture, preparing it for combustion when the spark plug ignites the mixture.
The most popular combustion engine is the internal combustion engine. It is used most often in spark ignition engines such as cars or lawn mowers. Diesel combustion engines are generally large trucks and construction vehicles.
During the compression stroke in an internal combustion engine, the piston moves upward, compressing the air-fuel mixture in the combustion chamber. This compression increases the pressure and temperature of the mixture, preparing it for ignition.
Internal combustion engine.
and internal combustion engine and a gasoline engine are the same thing.