组氨酸 Save Sign in to save words Traditional (Taiwan): 組氨酸 zǔānsuān ㄗㄨˇ ㄢ ㄙㄨㄢ histidine (His), an essential amino acid Character by character 组(zǔ)form 氨(ān)ammonia 酸(suān)sour A Chinese word or character, or English Search Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0