noun
: ignition in an internal-combustion engine in which the necessary high temperature is produced by compressing air in the cylinder before admission of the fuel (as in a diesel engine)
compression-ignition engine
noun
: ignition in an internal-combustion engine in which the necessary high temperature is produced by compressing air in the cylinder before admission of the fuel (as in a diesel engine)
compression-ignition engine
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012