(1) Relating to acetylcholine, e.g. cholinergic neuron.
(3) Activated by or capable of releasing acetylcholine.
noun, plural: cholinergics
A cholinergic agent may act directly, e.g. by stimulating the acetylcholine receptors (the same way that the acetylcholine does), or indirectly by inhibiting cholinesterase, promoting the release of acetylcholine.
Word origin: (acetyl)choline + -ergic » Greek ergon, work.
Related forms: cholinergically (adverb).