| gas | (noun) a pedal that controls the throttle valve | Synonyms: accelerator, accelerator pedal, gas pedal, gun, throttle |
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| (noun) 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 | Synonyms: gaseous state |
| (noun) a state of excessive gas in the alimentary canal | Synonyms: flatulence, flatulency |
| (noun) a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely | - |
| (noun) a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines | Synonyms: gasolene, gasoline, petrol |
| (noun) a fossil fuel in the gaseous state; used for cooking and heating homes | Synonyms: natural gas |
| gasbag | (noun) the bag containing the gas in a balloon | Synonyms: envelope |
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| (noun) a boring person who talks a great deal about uninteresting topics | Synonyms: windbag |
| gasconade | (noun) an instance of boastful talk | Synonyms: brag, bragging, crow, crowing, line-shooting, vaporing |
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| gaseousness | (noun) having the consistency of a gas | - |
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| gasfield | (noun) a region where there is natural gas underground | - |
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| gash | (noun) a strong sweeping cut made with a sharp instrument | Synonyms: slash |
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| (noun) a trench resembling a furrow that was made by erosion or excavation | Synonyms: cut |
| (noun) a wound made by cutting | Synonyms: cut, slash, slice |
| gasification | (noun) the process of changing into gas | - |
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| gasket | (noun) seal consisting of a ring for packing pistons or sealing a pipe joint | - |
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| gaskin | (noun) lower part of a horse's thigh between the hock and the stifle | - |
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| gaslight | (noun) light yielded by the combustion of illuminating gas | - |
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| gasman | (noun) someone employed by a gas company | - |
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| gasmask | (noun) a protective mask with a filter; protects the face and lungs against poisonous gases | Synonyms: gas helmet, respirator |
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| gasohol | (noun) a gasoline substitute consisting of 90% gasoline and 10% grain alcohol from corn | - |
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| gasolene | (noun) a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines | Synonyms: gas, gasoline, petrol |
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| gasoline | (noun) a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines | Synonyms: gas, gasolene, petrol |
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| gasometer | (noun) a large gas-tight spherical or cylindrical tank for holding gas to be used as fuel | Synonyms: gas holder |
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| (noun) a meter for measuring the amount of gas flowing through a particular pipe | Synonyms: gas meter |
| gasp | (noun) a short labored intake of breath with the mouth open | Synonyms: pant |
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| gassing | (noun) the deliberate act of poisoning some person or animal with gas | - |
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| (noun) the process of interacting with gas | - |
| gasteromycete | (noun) any fungus of the class Gasteromycetes | Synonyms: gastromycete |
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| gastralgia | (noun) an ache localized in the stomach or abdominal region | Synonyms: bellyache, stomach ache, stomachache |
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| gastrectomy | (noun) surgical removal of all or part of the stomach | - |
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| gastrin | (noun) polypeptide hormone secreted by the mucous lining of the stomach; when peptides and amino acids are present in the small intestine the secretion of gastric acid is stimulated | - |
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| gastritis | (noun) inflammation of the lining of the stomach; nausea and loss of appetite and discomfort after eating | - |
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| gastrocnemius | (noun) the muscle in the back part of the leg that forms the greater part of the calf; responsible for the plantar flexion of the foot | Synonyms: gastrocnemius muscle |
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| gastroenteritis | (noun) inflammation of the stomach and intestines; can be caused by Salmonella enteritidis | Synonyms: intestinal flu, stomach flu |
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| gastroenterologist | (noun) a physician who specializes in diseases of the gastrointestinal tract | - |
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| gastroenterology | (noun) the branch of medicine that studies the gastrointestinal tract and its diseases | - |
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| gastroenterostomy | (noun) surgical creation of an opening between the stomach wall and the small intestines; performed when the normal opening has been eliminated | - |
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| gastrogavage | (noun) feeding a nutrient solution into the stomach through a tube through a surgically created opening | - |
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| gastrolobium | (noun) any of various Australian evergreen shrubs of the genus Gastrolobium having whorled compound leaves poisonous to livestock and showy yellow to deep reddish-orange flowers followed by two-seeded pods | Synonyms: poison bush, poison pea |
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| gastromy | (noun) surgical incision into the stomach | - |
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| gastromycete | (noun) any fungus of the class Gasteromycetes | Synonyms: gasteromycete |
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| gastronome | (noun) a person devoted to refined sensuous enjoyment (especially good food and drink) | Synonyms: bon vivant, epicure, epicurean, foodie, gourmet |
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| gastronomy | (noun) the art and practice of choosing and preparing and eating good food | - |
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| (noun) a particular style of cookery (as of a region) | - |
| gastropod | (noun) a class of mollusks typically having a one-piece coiled shell and flattened muscular foot with a head bearing stalked eyes | Synonyms: univalve |
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| gastroscope | (noun) a type of endoscope for visually examining the stomach | - |
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| gastroscopy | (noun) visual examination of the stomach by means of a gastroscope inserted through the esophagus | - |
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| gastrostomy | (noun) surgical creation of an opening through the abdominal wall into the stomach (as for gastrogavage) | - |
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| gastrula | (noun) double-walled stage of the embryo resulting from invagination of the blastula; the outer layer of cells is the ectoderm and the inner layer differentiates into the mesoderm and endoderm | - |
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| gastrulation | (noun) the process in which a gastrula develops from a blastula by the inward migration of cells | - |
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| gasworks | (noun) the workplace where coal gas is manufactured | - |
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