Definition of nicotinic
Origin and Etymology of nicotinic
International Scientific Vocabulary
First Known Use: 1873
Medical Definition of nicotinic
: relating to, resembling, producing, or mediating the effects that are produced by acetylcholine liberated by nerve fibers at autonomic ganglia and at the neuromuscular junctions of voluntary muscle and that are mimicked by nicotine which increases activity in small doses and inhibits it in larger doses <nicotinic receptors>—compare muscarinic
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