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[gas-ee-uh s, gash-uh s] /ˈgæs i əs, ˈgæʃ əs/

existing in the state of a ; not solid or liquid.
pertaining to or having the characteristics of .
Informal. lacking firmness or solidity; uncertain; not definite.
(defs 1, 3).
/ˈɡæsɪəs; -ʃəs; -ʃɪəs; ˈɡeɪ-/
of, concerned with, or having the characteristics of a gas

1799, from gas (n.) + -ous.

gaseous gas·e·ous (gās’ē-əs, gāsh’əs)

gas’e·ous·ness n.
One of four main states of matter, composed of molecules in constant random motion. Unlike a solid, a gas has no fixed shape and will take on the shape of the space available. Unlike a liquid, the intermolecular forces are very small; it has no fixed volume and will expand to fill the space available.

gaseous adjective (gās’ē-əs, gāsh’əs)


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