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gas mask a device worn over the face that has a built-in chemical air filter to protect the wearer from inhaling poisonous gases or noxious fumes.
gasohol a mixture of gasoline with a small amount of ethyl alcohol, used esp. to power cars.
gasoline a volatile, flammable liquid of hydrocarbons, derived from petroleum and used primarily as fuel for internal-combustion engines.
gasometer a container that both holds and measures gas. [2 definitions]
gasp a sudden, brief, convulsive taking in of air through the mouth, as in shock or a condition of breathlessness. [3 definitions]
gas plant see dittany.
gas station a place where gas, oil, and other supplies for running a car can be bought; filling station; service station.
gassy containing, filled with, or like a gas.
gastric of or concerning the stomach.
gastric juice a colorless liquid, containing hydrochloric acid and enzymes, that is secreted by glands in the lining of the stomach; digestive fluid.
gastric ulcer an open sore in the stomach lining, caused by the corrosive action of gastric juice.
gastritis an abnormal inflammation of the lining or other part of the stomach.
gastro- stomach.
gastroenteritis inflammation of the mucous membranes lining the stomach and intestines.
gastrointestinal of, concerning, or having an effect on the stomach and intestines.
gastronome a connoisseur of fine cuisine; gourmet.
gastronomy the study or practice of eating well.
gastropod any of a wide variety of mollusks, such as the snail or limpet, usu. having a large muscular organ for creeping. [2 definitions]
gastrovascular simultaneously serving both a digestive and a circulatory function.
gastrula an embryo in an early stage of development consisting of two saclike layers of cells that enclose a central cavity.
gasworks (used with a sing. verb) a plant at which gas is generated for use in heating and, esp. formerly, in lighting.