Dictionary entry details
• GAS (noun)
Meaning:
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
Classified under:
Nouns denoting stable states of affairs
Synonyms:
gas; gaseous state
Hypernyms ("gas" is a kind of...):
state; state of matter ((chemistry) the three traditional states of matter are solids (fixed shape and volume) and liquids (fixed volume and shaped by the container) and gases (filling the container))
Meaning:
A fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely
Classified under:
Nouns denoting substances
Hypernyms ("gas" is a kind of...):
fluid (a continuous amorphous substance that tends to flow and to conform to the outline of its container: a liquid or a gas)
Hyponyms (each of the following is a kind of "gas"):
methane (a colorless odorless gas used as a fuel)
inhalant (something that is inhaled)
ideal gas; perfect gas (a hypothetical gas with molecules of negligible size that exert no intermolecular forces)
water gas (a mixture of hydrogen and carbon monoxide with small amounts of other gases; made by blowing steam over hot coke or coal)
bottled gas; liquefied petroleum gas (hydrocarbon gases, usually propane or butane, kept under pressure)
greenhouse emission; greenhouse gas (a gas that contributes to the greenhouse effect by absorbing infrared radiation)
formaldehyde; methanal (a colorless poisonous gas; made by the oxidation of methanol)
air gas; producer gas (a gas made of carbon monoxide and hydrogen and nitrogen; made by passing air over hot coke)
ozone (a colorless gas (O3) soluble in alkalis and cold water; a strong oxidizing agent; can be produced by electric discharge in oxygen or by the action of ultraviolet radiation on oxygen in the stratosphere (where it acts as a screen for ultraviolet radiation))
phosgene (a colorless poisonous gas that smells like new-mown hay; used in chemical warfare)
lachrymator; lacrimator; tear gas; teargas (a gas that makes the eyes fill with tears but does not damage them; used in dispersing crowds)
sulfur dioxide; sulphur dioxide (a colorless toxic gas (SO2) that occurs in the gases from volcanoes; used in many manufacturing processes and present in industrial emissions; causes acid rain)
sublimate (the product of vaporization of a solid)
sewer gas (foul-smelling gas that forms in sewers)
mephitis (a poisonous or foul smelling gas emitted from the earth)
propene; propylene (a flammable gas obtained by cracking petroleum; used in organic synthesis)
poison gas (a gas that is poisonous to breath or contact; used in chemical warfare)
phosphine (a colorless gas with a strong fishy smell; used as a pesticide)
ethene; ethylene (a flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals; sometimes used as an anesthetic)
compressed gas (gas at a high pressure that can be used as a propellant)
air (a mixture of gases (especially oxygen) required for breathing; the stuff that the wind consists of)
butane (occurs in natural gas; used in the manufacture of rubber and fuels)
atomic number 8; O; oxygen (a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust)
atomic number 7; N; nitrogen (a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues)
atomic number 1; H; hydrogen (a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe)
atomic number 9; F; fluorine (a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite)
atomic number 17; chlorine; Cl (a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water))
argonon; inert gas; noble gas (any of the chemically inert gaseous elements of the helium group in the periodic table)
atmosphere (the envelope of gases surrounding any celestial body)
propane (colorless gas found in natural gas and petroleum; used as a fuel)
afterdamp (a toxic mixture of gases (including carbon dioxide and carbon monoxide and nitrogen) after an explosion of firedamp in a mine)
exhaust; exhaust fumes; fumes (gases ejected from an engine as waste products)
cyanogen (a colorless toxic gas with a pungent almond odor; has been used in chemical warfare)
butene; butylene (any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers)
blow gas; blowing gas (the gas leaving a generator during a blow period)
nitric oxide (a poisonous red-brown gas (NO))
nitrogen dioxide (a highly poisonous brown gas (NO2))
arsine (a poisonous colorless flammable gas used in organic synthesis and to dope transistors and as a poison gas in warfare)
firedamp (a mixture of gases (mostly methane) that form in coal mines and become explosive when mixed with air)
Meaning:
A volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines
Classified under:
Nouns denoting substances
Synonyms:
petrol; gasoline; gasolene; gas
Hypernyms ("gas" is a kind of...):
fuel (a substance that can be consumed to produce energy)
hydrocarbon (an organic compound containing only carbon and hydrogen)
Hyponyms (each of the following is a kind of "gas"):
unleaded gasoline (gasoline that has not been treated with a lead compound)
napalm (gasoline jelled with aluminum soaps; highly incendiary liquid used in fire bombs and flame throwers)
leaded gasoline (gasoline treated with a lead compound to reduce motor knocks)
Holonyms ("gas" is a substance of...):
gasohol (a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn)
Meaning:
A state of excessive gas in the alimentary canal
Classified under:
Nouns denoting stable states of affairs
Synonyms:
flatulency; flatulence; gas
Hypernyms ("gas" is a kind of...):
physiological condition; physiological state (the state of the body or bodily functions)
Meaning:
A pedal that controls the throttle valve
Classified under:
Nouns denoting man-made objects
Synonyms:
accelerator; accelerator pedal; gas pedal; throttle; gas; gun
Context example:
he stepped on the gas
Hypernyms ("gas" is a kind of...):
foot lever; foot pedal; pedal; treadle (a lever that is operated with the foot)
Holonyms ("gas" is a part of...):
aeroplane; airplane; plane (an aircraft that has a fixed wing and is powered by propellers or jets)
auto; automobile; car; machine; motorcar (a motor vehicle with four wheels; usually propelled by an internal combustion engine)
Meaning:
A fossil fuel in the gaseous state; used for cooking and heating homes
Classified under:
Nouns denoting substances
Synonyms:
natural gas; gas
Hypernyms ("gas" is a kind of...):
fossil fuel (fuel consisting of the remains of organisms preserved in rocks in the earth's crust with high carbon and hydrogen content)
Meronyms (substance of "gas"):
methane (a colorless odorless gas used as a fuel)
• GAS (verb)
Meaning:
Attack with gas; subject to gas fumes
Classified under:
Verbs of fighting, athletic activities
Context example:
The despot gassed the rebellious tribes
Hypernyms (to "gas" is one way to...):
assail; attack (launch an attack or assault on; begin hostilities or start warfare with)
Troponyms (each of the following is one way to "gas"):
teargas (attack with teargas; subject to teargas fumes)
Sentence frames:
Somebody ----s something
Somebody ----s somebody
Meaning:
Show off
Classified under:
Verbs of telling, asking, ordering, singing
Synonyms:
vaunt; shoot a line; gasconade; brag; boast; gas; bluster; tout; swash; blow
Hypernyms (to "gas" is one way to...):
amplify; exaggerate; hyerbolise; hyperbolize; magnify; overdraw; overstate (to enlarge beyond bounds or the truth)
Troponyms (each of the following is one way to "gas"):
puff (speak in a blustering or scornful manner)
crow; gloat; triumph (dwell on with satisfaction)
Sentence frames:
Somebody ----s
Somebody ----s PP
Somebody ----s that CLAUSE
Somebody ----s to somebody
