anticholinesterase

noun Biochemistry, Pharmacology.

1. an enzyme or drug that blocks the action of acetylcholinesterase, thereby increasing the stimulating effect of acetylcholine on the muscles.

noun

1. any of a group of substances that inhibit the action of cholinesterase

n.

1. A substance that inhibits the activity of cholinesterases, including acetylcholinesterase.