mustard gas

noun

Definition of mustard gas

: an irritant vesicant oily liquid C4H8Cl2S used especially as a chemical weapon

Examples of mustard gas in a Sentence

Recent Examples on the Web Or, another gem, evacuate an enormous area of land and use airplanes to spray mustard gas (the gas widely used in World War I) to exterminate the animal population, which was responsible for the dispersal of prickly pear seeds. Longreads, "Why Bumblebees Love Cats and Other Beautiful Relationships," 23 Mar. 2021 Allied leaders were quick to place the blame on the Germans, but Alexander found concrete evidence sourcing the contamination to an Allied shipment of mustard gas struck during the bombing. Meilan Solly, Smithsonian Magazine, "The Ten Best History Books of 2020," 1 Dec. 2020 In the past, a joint U.N.-OPCW investigative mechanism accused Syria of using chlorine and the nerve agent sarin during the civil war, while the Islamic State group was accused of using mustard gas twice in 2015 and 2016. Mike Corder, Star Tribune, "OPCW probes couldn't prove chemical use in 2 Syria attacks," 2 Oct. 2020 In 2007, the refuge was closed after a Boy Scout dug up a CAIS vial filled with decades-old mustard gas. Ashley Stimpson, National Geographic, "Dig in! This nature reserve wants you to make a mess," 15 Sep. 2020 German mustard gas bombs were always marked with the distinctive Gelb Kreuz, or yellow cross. Jennet Conant, Smithsonian Magazine, "How a chemical weapons disaster in World War II led to a U.S. cover-up—and a new cancer treatment," 18 Aug. 2020 Within 24 hours, Tasker and his wife began to suffer the effects of mustard gas exposure. Kyle Mizokami, Popular Mechanics, "It's a Bad Idea to Dump Mustard Gas Into a Lake," 19 June 2020 Ordnance officers from the U.S. Air Force identified the casings as belonging to a 100-pound M47A2 mustard gas bomb. Jennet Conant, Smithsonian Magazine, "How a chemical weapons disaster in World War II led to a U.S. cover-up—and a new cancer treatment," 18 Aug. 2020 In 2009, mustard gas was found on the grounds of American University. Kyle Mizokami, Popular Mechanics, "It's a Bad Idea to Dump Mustard Gas Into a Lake," 19 June 2020

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'mustard gas.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of mustard gas

1917, in the meaning defined above

Keep scrolling for more

Learn More about mustard gas

Time Traveler for mustard gas

Time Traveler

The first known use of mustard gas was in 1917

See more words from the same year

Statistics for mustard gas

Last Updated

28 Mar 2021

Cite this Entry

“Mustard gas.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/mustard%20gas. Accessed 20 Apr. 2021.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon

Keep scrolling for more

More Definitions for mustard gas

mustard gas

noun

English Language Learners Definition of mustard gas

: a poison gas used as a weapon in a war

mustard gas

noun

Medical Definition of mustard gas

: an irritant oily liquid C4H8Cl2S used especially as a chemical weapon that causes blistering, attacks the eyes and lungs, and is a systemic poison

called also dichlorethyl sulfide, sulfur mustard

More from Merriam-Webster on mustard gas

Britannica.com: Encyclopedia article about mustard gas

Comments on mustard gas

What made you want to look up mustard gas? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

Test Your Vocabulary

Name that Thing: Flower Edition

Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
 AlphaBear 2

Spell words. Make bears.

TAKE THE QUIZ
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!