gaseous

[ gas-ee-uhs, gash-uhs ]

adjective

1. existing in the state of a gas; not solid or liquid.
2. pertaining to or having the characteristics of gas.
3. Informal. lacking firmness or solidity; uncertain; not definite.
4. gassy ( defs 1, 3 ).

gaseous

/ -ʃəs; ˈɡeɪ-; ˈɡæsɪəs; -ʃɪəs /

adjective

1. of, concerned with, or having the characteristics of a gas

Derived Forms

• ˈgaseousness, noun

Other Words From

• gase·ous·ness gas·e·i·ty [ga-, see, -i-tee], noun
• non·gase·ous adjective
• non·gase·ous·ness noun
• pseudo·gase·ous adjective
• quasi-gase·ous adjective

Word History and Origins

Origin of gaseous¹

First recorded in 1790–1800; gas + -eous

Example Sentences

Cane burning also produced an estimated 89% of the county’s carbonyls, a category of gaseous pollutants.

From ProPublica

In the past, astronomers believed Saturn had a rocky core hidden at the center of its mostly gaseous mass.

From Popular-Science

The result is a material that, according to its creators, is almost as bad at conducting heat as gaseous air.

From Popular-Science

A high-pressure onboard tank stores the hydrogen in gaseous form and dispenses it to the vehicle’s fuel cell.

From Popular-Science

Plants have caused a dramatic change in the composition of the atmosphere by releasing gaseous oxygen as a side effect of converting the sun’s light into chemical energy via photosynthesis.

From Nautilus

Was Obama so gaseous in the classroom when he taught constitutional law?

From The Daily Beast

And let's put that Gaseous Diffusion Plant in...well, on second thought, keep it, Kentucky.

From The Daily Beast

As it expands into the gaseous state it absorbs heat, and a temperature of -20 C. has thus been produced.

From Project Gutenberg

We may ask, whether this theory cannot be used to explain the connection between osmotic and gaseous pressure.

From Project Gutenberg

The constants for gaseous elements represent the constants of the gases under atmospheric pressure.

From Project Gutenberg

The potentials given for the gaseous elements represent the potentials of the gases under 760 mm.

From Project Gutenberg

The error was, non-observation of an important portion of the actual residue, namely, the gaseous products of combustion.

From Project Gutenberg