半衰期 Save Create a free account to save words bànshuāiqī ㄅㄢˋ ㄕㄨㄞ ㄑㄧ 男 女 half-life physics Character by character 半(bàn)half 衰(shuāi)decay 期(qī)period Sign up for a free account to save words and review them A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0