From thunder + flash. <span class="searchmatch">thunderflash</span> (plural thunderflashes) (military) A pyrotechnic device that generates a loud noise, used to simulate battlefield conditions...
deploying flash-bangs to disperse peaceful protests near the White House. flash grenade stun grenade concussion grenade <span class="searchmatch">thunderflash</span> a type of grenade...
thunderdunk thunder egg thunderegg thunder fever thunder fire thunderfish <span class="searchmatch">thunderflash</span> thunderful thunder god thunder god vine thundergust thunderhead thunderless...
preflash quick as a flash radioflash ring flash side flash synchroflash <span class="searchmatch">thunderflash</span> welder's flash xenon flash lamp → Catalan: flaix → Polish: flesz burst...