閃せん光こう発はつ音おん筒とうMeaningsNoun1. stun grenade (esp. the M84 stun grenade); flashbang (Rare)Kanji used閃flash光ray発let out音sound筒cylinderComposed of閃せん光こうflash (of light); glint; schillerNoun発はつ音おんpronunciation; production of soundNoun筒とうpipe; tube; counter for injection ampoulesSuffix