ANTICHOLINERGIC
anticholinergic
(adjective) inhibiting or blocking the action of acetylcholine at a receptor site; “anticholinergic drugs”
anticholinergic, anticholinergic drug
(noun) a substance that opposes or blocks the action of acetylcholine
Source: WordNet® 3.1
Etymology
Adjective
anticholinergic (comparative more anticholinergic, superlative most anticholinergic)
That inhibits the physiological action of acetylcholine at a receptor site
Noun
anticholinergic (plural anticholinergics)
(medicine) Any of a class of drugs, typically used to treat various disorders and some forms of poisoning, which inhibit the physiological action of acetylcholine at a receptor site
Source: Wiktionary