noun, noun or participle which takes 'suru', intransitive verb
spontaneous discharge; sudden outburst
Broad sense: an uncontrolled release of energy or emotion, such as a gun firing without pulling the trigger, or a sudden emotional explosion.
銃が暴発して、けが人が出た。
The gun discharged accidentally, and someone was injured.
彼の怒りが暴発した。
His anger burst out suddenly.
noun, noun or participle which takes 'suru', intransitive verb
accidental gun discharge
Specifically refers to a firearm going off unintentionally, often due to mishandling or mechanical failure.
警察官の拳銃が暴発する事故があった。
There was an accident where a police officer's handgun discharged accidentally.