子弹 (子彈) zǐdàn

zǐdàn noun bullet
Domain: Modern Chinese 现代汉语 , Subdomain: Weapons
Notes: Measure word: 颗 or 发 (CC-CEDICT '子彈')

Also contained in

原子弹中子弹内爆法原子弹拨子弹子弹火车