VX

noun

ˈvē-ˈeks 

: an extremely toxic chemical weapon C₁₁H₂₆NO₂PS similar to sarin and tabun in action

Word History

Etymology

American or British government code designation for the gas

First Known Use

1965, in the meaning defined above

Medical Definition

VX

noun

ˈvē-ˈeks 

: an extremely toxic persistent chemical warfare agent C₁₁H₂₆NO₂PS that is used especially as a nerve gas and that in large doses typically causes convulsions, loss of consciousness, paralysis, and failure of the respiratory system leading to death