gaseous gas·e·ous (gās'ē-əs, gāsh'əs)
Of, relating to, or existing as a gas.
Full of or containing gas; gassy.
|gas (gās) Pronunciation Key
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)