纳磅弹 nàbàngdàn napalm bomb Origin Definitions Defs Strokes Stroke Words Sentences Sents 纳 納 nà nano- (bound form) prefix for one-billionth磅 bàng nounmeasure word pound unit of weight equal to approximately 454 grams弹 彈 dàn noun bullet bullet; ball; shell; bomb; (bound form) small pellet used as a projectile from a catapult or slingshot