脯氨酸 Save Sign in to save words púānsuān ㄆㄨˊ ㄢ ㄙㄨㄢ proline (Pro), an amino acid Character by character 脯(pú)chest 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