noun🔗ShareAcetylcholinA neurotransmitter in humans and other animals. It is an ester of acetic acid and choline with chemical formula CH3COOCH2CH2N+(CH3)3."Example Sentence: "Acetylcholine is released by nerve cells to help muscles contract, allowing you to lift a book." "Acetylcholin wird von Nervenzellen freigesetzt, um die Muskeln zu kontrahieren, so dass Sie ein Buch heben können.biochemistryphysiologymedicinecompoundchemistrybiologysubstancefunctionbodyscienceorganismtechnicalanatomyChat with AIVocabulary GamePractice Reading