The story
From methyl- + fluoro- + phosphonyl + choline.
Etymology from Wiktionary, CC BY-SA 4.0.
Today it means: A highly toxic organophosphorus compound that combines a choline-like structure with a fluorophosphonate group and acts as an irreversible inhibitor of acetylcholinesterase, causing dangerous overstimulation of the nervous system. Full definition →
From methyl- + fluoro- + phosphonyl + choline.
Etymology from Wiktionary, CC BY-SA 4.0.