gaseous

adjective

gas·​eous ˈga-sē-əs  ˈga-shəs 

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

gaseousness noun

Synonyms

• bombastic
• flatulent
• fustian
• gassy
• grandiloquent
• oratorical
• orotund
• rhetorical
• rhetoric
• windy

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

The films are formed by a chemical reaction between two gaseous precursor substances, which are introduced to the substrate by turns. —IEEE Spectrum, 12 Sep. 2024

Goldberg's words come over a year after The View began an unrelenting battle with gaseous entities, following a horrific water spillage (and mysterious fart noise of unknown origin) that plagued the Hot Topics table in January 2023. —EW.com, 5 Nov. 2024

Officials said a chemical reaction caused styrene, which is naturally a liquid, to heat up into a gaseous state. —Quinlan Bentley, The Enquirer, 26 Sep. 2024

To that gaseous stew, which is harder to mitigate in this dense city, idling contributes something like 130,000 tons every year. —Rafil Kroll-Zaidi, Curbed, 3 Sep. 2024

Word History

First Known Use

1799, in the meaning defined at sense 1

Kids 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

Medical Definition

gaseous

adjective

gas·​eous ˈgas-ē-əs  ˈgash-əs 

: having the form of or being gas

also : of or relating to gases