backflash
nounEtymology From back + flash.
1
The hazardous situation where the flame propagates backward down the hose of an oxyfuel welding and cutting system.
2
Synonym of flashback (“dramatic device”).
- As an experienced editor I disapprove of backflashes, foreshadowings and tricksy devices […]2004, David Mitchell, Cloud Atlas, London: Sceptre (Hodder and Stoughton), →ISBN: