乙酰胆碱 Traditional 乙酰膽鹼 yǐ xiān dǎn jiǎn 🔊 acetylcholine ACh (amine related to… + Keep this word Meanings yǐ xiān dǎn jiǎn 乙酰膽鹼 acetylcholine ACh (amine related to vitamin B complex) Its characters 乙yǐsecond of the ten Heavenly Stems…HSK 5酰xiānacid radical胆dǎngall bladder碱jiǎnbase; alkali; soda