off-gassing

noun

off-gas·​sing ˈȯf-ˌga-siŋ How to pronounce off-gassing (audio)
: the emission of especially noxious gases (as from a building material)

Examples of off-gassing 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.
When Alpert was researching mattresses made with organic materials (and ideally, no off-gassing) for her 12-year-old son, she was immediately impressed by the accolades for Awara’s Classic Hybrid Mattress. Yelena Moroz Alpert, Architectural Digest, 24 June 2026 Chief Jaime Moore said that an ammonia line inside the facility was compromised, which caused off-gassing. Sydney Barragan, Daily News, 18 June 2026 Water vapor would then have flooded the Venusian atmosphere, potentially causing intensive global warming; this warming might have been exacerbated further by volcanoes off-gassing carbon dioxide. Quanta Magazine, 15 Sep. 2025

Word History

First Known Use

1965, in the meaning defined above

Time Traveler
The first known use of off-gassing was in 1965

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Cite this Entry

“Off-gassing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/off-gassing. Accessed 5 Jul. 2026.

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