1
: having the form of or being gas
also
: of or relating to gases
2
a
: lacking substance or solidity
b
: gassy sense 3
trick phrases and gaseous circumlocutions—
Edwin Newman
Edwin Newman
gaseousness
noun
Synonyms
Examples of gaseous in a Sentence
a substance changing from a liquid to a gaseous state
a pompous professor known for his gaseous lectures that often put students to sleep
Recent Examples on the Web
As an associated chemical reaction continued to send a gaseous plume over the area Sunday night, residents near the plant in Conyers, Georgia, were under mandatory evacuation orders.
—Mirna Alsharif, NBC News, 30 Sep. 2024
Miller said that when styrene, naturally a liquid, heats up, a chemical reaction occurs, converting it into a gaseous state.
—Quinlan Bentley, The Enquirer, 26 Sep. 2024
Before the Starliner crew even reached the ISS, however, five of the spacecraft’s thrusters began misfiring, and the supply of a gaseous helium that keeps the thrusters pressurized sprang five leaks.
—Jeffrey Kluger, TIME, 15 Aug. 2024
But the planet’s atmosphere also modifies any light passing through it because gaseous molecules absorb light at specific frequencies.
—The Physics Arxiv Blog, Discover Magazine, 25 July 2024
See all Example Sentences for gaseous 
Mirna Alsharif, NBC News, 30 Sep. 2024
Miller said that when styrene, naturally a liquid, heats up, a chemical reaction occurs, converting it into a gaseous state.
—Quinlan Bentley, The Enquirer, 26 Sep. 2024
Before the Starliner crew even reached the ISS, however, five of the spacecraft’s thrusters began misfiring, and the supply of a gaseous helium that keeps the thrusters pressurized sprang five leaks.
—Jeffrey Kluger, TIME, 15 Aug. 2024
But the planet’s atmosphere also modifies any light passing through it because gaseous molecules absorb light at specific frequencies.
—The Physics Arxiv Blog, Discover Magazine, 25 July 2024
See all Example Sentences for gaseous
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'gaseous.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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Cite this Entry
“Gaseous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gaseous. Accessed 15 Oct. 2024.
Copy CitationKids Definition
gaseous
adjective
gas·eous
ˈgas-ē-əs 
ˈgash-əs
1
: having the form of or being gas
2
: of or relating to gas
3
: lacking solidity
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