gas

Definitions

• (uncountable) Matter in a state intermediate between liquid and plasma that can be contained only if it is fully surrounded by a solid (or in a bubble of liquid) (or held together by gravitational pull); it can condense into a liquid, or can (rarely) become a solid directly.
• (countable) A chemical element or compound in such a state.
• (uncountable) A flammable gaseous hydrocarbon or hydrocarbon mixture (typically predominantly methane) used as a fuel, e.g. for cooking, heating, electricity generation or as a fuel in internal combustion engines in vehicles.
• (countable) A hob on a gas cooker.
• (US) Methane or other waste gases trapped in one's belly as a result of the digestive process.
• (slang) A humorous or entertaining event or person.
• (slang) Frothy talk; chatter.
• (baseball) A fastball.
• (medicine) arterial blood Arterial or venous blood gas.
• (slang) Marijuana, typically of high quality.