防ぼう弾だん

noun, noun which may take the genitive case particle 'no'

bulletproof; bombproof

Describes materials, equipment, or structures designed to resist bullets or explosions. Often used in compounds like 防弾チョッキ (bulletproof vest) or 防弾ガラス (bulletproof glass).

• 警けい察さつ官かんは防ぼう弾だんチョッキを着ちゃく用ようしていた。

  The police officer was wearing a bulletproof vest.