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

Examples of VX in a Sentence

Recent Examples on the Web
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Take Valerie Zhang, the 27-year-old cofounder of VX Media who creates 30-some-second spots on social media for clients like Kiehl's, Maybelline and more that resemble full-fledged TV commercials (think vibrant colors, high-definition film, quick cuts and pop-music to market the new Dior perfume). Alexandra York, Forbes, 3 Dec. 2024 Other chemicals, including VX, which is mainly weaponized as a liquid and evaporates slowly, can last up to a month. Sohail H. Hashmi, Foreign Affairs, 9 Sep. 2013 The mustard agent was eliminated in 2021 and the final rocket containing VX agent was neutralized at the plant in April 2022. Dylan Lovan, The Courier-Journal, 8 June 2023

Word History

Etymology

American or British government code designation for the gas

First Known Use

1965, in the meaning defined above

Time Traveler
The first known use of VX was in 1965

Dictionary Entries Near VX

Cite this Entry

“VX.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/VX. Accessed 27 Dec. 2024.

Medical Definition

VX

noun
: 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

More from Merriam-Webster on VX

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