intransitive verb. : to become ignited without flame or spark (as under high compression)

What is the meaning of self ignition?

Self-ignition can refer either to automatic combustion without being provided by any external source of heat. Spontaneous combustion or. the ability of Diesel fuel to ignite under high compression and the use of that phenomenon in Diesel engines.

What does ignited mean mean?

1a : to set afire also : kindle. b : to cause (a fuel) to burn. 2 : to subject to fire or intense heat especially : to render luminous by heat. 3a : to heat up : excite oppression that ignited the hatred of the people. b : to set in motion : spark ignite a debate.