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
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
But their accelerating power is limited by the density of the plasma, which is typically a gaseous substance with fewer than 10^18 particles per cubic centimeter.
—The Physics Arxiv Blog, Discover Magazine, 14 Feb. 2025
The process involves first converting the water into a gaseous state and then ionizing it to create plasma, a highly energetic state of matter consisting of free electrons and ions.
—Aman Tripathi, Interesting Engineering, 8 Feb. 2025
The contaminant was identified as less than 500 pounds of sulfur dioxide, a gaseous air pollutant associated with respiratory issues and irritation to the eyes, nose and throat.
—Chase Hunter, The Mercury News, 7 Feb. 2025
Astronomers can hunt for signatures of elements in planets and their atmospheres and determine the ratio of rocky matter to icy gaseous matter present when the planet was born.
—Robert Lea, Space.com, 3 Feb. 2025
See All Example Sentences for gaseous
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The Physics Arxiv Blog, Discover Magazine, 14 Feb. 2025
The process involves first converting the water into a gaseous state and then ionizing it to create plasma, a highly energetic state of matter consisting of free electrons and ions.
—Aman Tripathi, Interesting Engineering, 8 Feb. 2025
The contaminant was identified as less than 500 pounds of sulfur dioxide, a gaseous air pollutant associated with respiratory issues and irritation to the eyes, nose and throat.
—Chase Hunter, The Mercury News, 7 Feb. 2025
Astronomers can hunt for signatures of elements in planets and their atmospheres and determine the ratio of rocky matter to icy gaseous matter present when the planet was born.
—Robert Lea, Space.com, 3 Feb. 2025
See All Example Sentences for gaseous
Cite this Entry
“Gaseous.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/gaseous. Accessed 22 Apr. 2025.
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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