胆碱 Traditional form: 膽鹼 Pinyin (reading): dǎnjiǎn Definitions: choline (amine related to vitamin B complex) Characters: 胆 - gallbladder; gall, guts, courage 碱 - alkaline, alkali, lye, salt Traditional characters: 膽 - gallbladder; gall, guts, courage 鹼 - alkaline, alkali, lye, salt