Definition of


  1. (noun, state) the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container
  2. (noun, substance) a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
  3. (noun, substance) a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
  4. (noun, state) a state of excessive gas in the alimentary canal
  5. (noun, artifact) a pedal that controls the throttle valve
  6. (noun, substance) a fossil fuel in the gaseous state; used for cooking and heating homes
  7. (verb, competition) attack with gas; subject to gas fumes
  8. (verb, communication) show off

via WordNet, Princeton University

Origin of the word Gas

  1. 1658, from Du. gas, probably from Gk. khaos "empty space" (see chaos). The sound of Du. "g" is roughly equivalent to that of Gk. "kh." First used by Flem. chemist J.B. van Helmont (1577-1644), probably influenced by Paracelsus, who used khaos in occult sense of "proper elements of spirits" or "ultra-rarified water," which was van Helmont's definition of more

via Online Etymology Dictionary, ©2001 Douglas Harper

Words that sound like Gas

g, g-jo, g.i., ga, gaea, gag, gaga, gage, gai choi, gaia, gaius, gao, gas gage, gas gauge, gaseous, gash, gassy, gauche, gaucho, gauge, gauss, gauze, gauzy, gawk, gawky, gay, gaza, gaze, gc, gca, gcse, ge, gecko, gee, gee-gee, geek, geisha, geococcyx, gesso, gewgaw, ghee, gheg, ghq

via soundex() Hash Matches

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