flashbulb

/ˈflaʃbʌlb/
bulb
球根、球状の膨らみ

flashbulbから

名詞

使い捨てのフラッシュ電球

suddenly flashbulbs were popping and whole rolls of film were squeezed off in seconds

突然フラッシュ電球が次々と光り、フィルムが数秒で使い切られた