gas

[a word coined by Van Helmont, a Belgian chemist of the seventeenth century.] thin fluid, like air, capable oi indefinite expansion, but usually convertible by compre ion and cold into a liquid, asphyz'iating g., carbon monoxide employed as a poisonous gas in warfare, hemolyt'ic g., a poisonous gas (arsine) used in warfare, inhalation of which causes hemolysis with hemoglobinuria, jaundice, gastroenteritis, and