WordReference Random House Unabridged Dictionary of American English © 2026
self-ig•nite
(self′ig nīt′, self′-),USA pronunciation v.i., -nit•ed, -nit•ing.
self-ig•ni•tion
(self′ig nish′ən, self′-),USA pronunciation n.
- to ignite without spark or flame.
- 1940–45