gas mask

noun

: a mask connected to a chemical air filter and used to protect the face and lungs from toxic gases
broadly : respirator sense 1

Examples of gas mask in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Security footage from the courthouse shows a man wearing a helmet, gas mask, tactical boots and sunglasses walk up to the building as a court officer opens the front door. Stephen Sorace, FOXNews.com, 16 Apr. 2025 In the video, Brown is seen at the Lower West Terrace entrance, using his body to push the crowd forward and spraying an officer whose gas mask had been torn off his face. Anita Gosch, Orange County Register, 16 Mar. 2025 Within a year, Britons were donning gas masks and building defenses. G. John Ikenberry, Foreign Affairs, 12 Mar. 2025 Police donned gas masks and tear-gassed the peaceful crowd. Chadd Scott, Forbes, 7 Mar. 2025 See All Example Sentences for gas mask

Word History

First Known Use

1915, in the meaning defined above

Time Traveler
The first known use of gas mask was in 1915

Browse Nearby Words

Cite this Entry

“Gas mask.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gas%20mask. Accessed 22 Apr. 2025.

Kids Definition

gas mask

noun
: a mask connected to a chemical air filter and used to protect the face and lungs against harmful gases

Medical Definition

gas mask

noun
: a mask connected to a chemical air filter and used to protect the face and lungs from toxic gases
broadly : respirator sense 1

More from Merriam-Webster on gas mask

Last Updated: - Updated example sentences
Love words? Need even more definitions?

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