having the ability to retard or block the activity of organs that receive their nerve impulses through the parasympathetic nervous system by opposing the action of acetylcholine
noun
an anticholinergic drug, as atropine
See anticholinergic in American Heritage Dictionary 4
(ănˌtē-kōˌlə-nûrˈjĭk, ănˌtī-)
adjective
Inhibiting or blocking the physiological action of acetylcholine at a receptor site: anticholinergic drugs.