plural -s
: self-ignition in an internal-combustion engine cylinder either as a result of the heat of the compression alone or from this in combination with glowing carbon compare preignition
autoignite intransitive verb
autoignited; autoigniting; autoignites
Apparently these additives sufficiently lower the ignition temperature of the particulates that are collected on the trap for the particulates to autoignite. W. D. Route et al., Oil & Gas Journal, 25 Jan. 1982

Word History


aut- + ignition

First Known Use

1901, in the meaning defined at sense 2

Time Traveler
The first known use of autoignition was in 1901

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Dictionary Entries Near autoignition

Cite this Entry

“Autoignition.” Dictionary, Merriam-Webster, Accessed 30 May. 2024.

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