Gases

• (pl. ) of Gas
Found on http://thinkexist.com/dictionary/meaning/gases/

Gases

Substances that become airborne at room temperature. They may or may not mix with air.
Found on http://www.encyclo.co.uk/local/21516

gases

The vapor state of matter; nonelastic fluids in which the molecules are in free movement and their mean positions far apart. Gases tend to expand indefinitely, to diffuse and mix readily with other gases, to have definite relations of volume, temperature, and pressure, and to condense or liquefy at low temperatures or under sufficient pressure. ......
Found on http://www.encyclo.co.uk/local/20973
No exact match found