|(esp in chemical warfare) any of various poisonous gases that have a potentially fatal paralysing effect on the central nervous system|
|an extraordinary or unusual thing, person, or event; an exceptional example or instance.|
|a scrap or morsel of food left at a meal.|
nerve gas n.
Any of various poisonous gases that interfere with the functioning of nerves by inhibiting cholinesterase.
Any of various poisonous gases that interfere with the functioning of nerves by inhibiting the breakdown of the neurotransmitter acetylcholine. Increased levels of acetylcholine stimulate the parasympathetic nervous system, leading to cardiac and respiratory arrest.