— acetylcholinic /euh seet'l koh lin"ik, euh set'-, as'i tl-/ , adj.
/euh seet'l koh"leen, euh set'-, as'i tl-/ , n.
1. Biochem. the acetic acid ester of choline, C 7 H 17 NO 3 , released and hydrolyzed during nerve conduction and causing muscle action by transmitting nerve impulses across synapses.
2. Pharm. this substance used in its chloride form in eye surgery. Abbr.: ACh
[ 1905-10; ACETYL + CHOLINE ]