off-gassing

1 of 2

noun

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

off-gassing

2 of 2

present participle of off-gas entry 2

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.
Noun
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 See All Example Sentences for off-gassing

Word History

First Known Use

Noun

1965, in the meaning defined above

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

Rhymes for off-gassing

See All Rhymes for off-gassing

Browse Nearby Words

off-gas
off-gassing
off-glide
See all Nearby Words

Cite this Entry

“Off-gassing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/off-gassing. Accessed 1 Sep. 2026.

Copy Citation
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!

Popular in Grammar & Usage

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Is it 'nerve-racking' or 'nerve-wracking'?

What's the difference between 'fascism' and 'socialism'?

Why does English have so many silent letters?

7 Pairs of Commonly Confused Words
See More

Popular in Wordplay

See More

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of

Even More Words That Sound Like Insults But Aren't

Even More Bird Names that Sound Like Insults (and Sometimes Are)

12 Lovely and Unusual Words for the Natural World
See More

Popular

See More

A Who’s Who Regarding ‘Who’s’ and ‘Whose’

Ye Olde Nincompoop: Old-Fashioned Words for 'Stupid'

14 Phobias You Probably Haven't Heard Of
See More

Games & Quizzes

See All
Play Quordle: Guess all four words in a limited number of tries. Each of your guesses must be a real 5-letter word.
Quordle Can you solve 4 words at once?
Play Blossom: Solve today's spelling word game by finding as many words as you can using just 7 letters. Longer words score more points.
Blossom Pick the best words!
Play Missing Letter: a crossword with a twist. Each of the 25 puzzle words start with a different letter of the alphabet. Which letter is missing?
The Missing Letter A daily crossword with a twist
skateboard-dog-hat
Wordmaxxing Slang Quiz Give your vocabulary a glow up by getting sendy w...
See All