noun
muzzle flash
Rare technical term for the visible flash of light at the muzzle of a firearm when it is discharged.
銃口炎は、発砲時に銃口から出る閃光のことだ。
Muzzle flash is the flash of light that comes from the muzzle when a gun is fired.
Compound of 銃口 (muzzle of a gun) and 炎 (flame, blaze).