A system of nerve cells that uses acetylcholine in transmitting nerve impulses.
The cholinergic system is a neurotransmitter system involved in the regulation of memory and learning. It is this system that degenerates in Alzheimer's disease.
Word origin: cholinergic » (acetyl)choline + -ergic » Greek ergon, work + system » Late Latin, systēma > Greek sýstēma, whole compounded of several parts.
See also: cholinergic.