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Jyutping jyut3 sin1 daam2 gaan2
Pinyin yǐ xiān dǎn jiǎn

Definitions (CC-CEDICT)
  1. acetylcholine ACh (amine related to vitamin B complex)
Definitions (Wiktionary)
  1. noun, Hong-Kong, Mainland-China
    acetylcholine
    (syn.) 乙醯胆碱, 乙醯膽鹼