- gas
- gas [gas]n.pl. gases or gasses [gas′iz] [ModL, altered by Van Helmont (1577-1644), Belgian chemist (with g- pronounced, as in Du, as a voiced fricative) < Gr chaos, air (see CHAOS), term used by Paracelsus]1. the fluid form of a substance in which it can expand indefinitely and completely fill its container; form that is neither liquid nor solid; vapor2. any mixture of flammable gases used for lighting, heating, or cooking3. any gas, as nitrous oxide, used as an anesthetic4. any substance, as phosgene, intentionally dispersed through the atmosphere, as in war, to act as a poison, irritant, or asphyxiant5. various gaseous substances formed by living or decaying matter, esp. if formed in the stomach, bowels, etc. [Informal]6. short for GASOLINE☆ 7. Slanga) idle or boastful talkb) something or someone that is very pleasing, exciting, amusing, etc. [the movie was a gas]8. Mining a mixture of firedamp with air, that explodes if ignitedvt.gassed, gassing1. to supply with gas2. to subject to the action of gas3. to injure or kill by gas, as in war☆ 4. Slang to thrill, delight, amuse greatly, etc.vi.1. to give off gas☆ 2. Slang to talk in an idle or boastful wayadj.of, using, or operated by gas——————☆ gas upInformal to put gasoline into the tank of (a vehicle)——————☆ step on the gas1. Slang to press on the accelerator of an automobile2. to hurry; move or act faster
English World dictionary. V. Neufeldt. 2014.