Definitions

1. adjective

relating to or containing nitrogen, especially in the form of nitrous oxide

“The nitrous oxide used in the medical gas supply is highly pressurized.”

2. noun

a gas containing nitrogen and oxygen, often used as an anesthetic

“The dentist used nitrous to calm the patient before the procedure.”

3. noun

a type of engine performance-enhancing additive, typically in the form of nitrous oxide

“The car’s engine was tuned to use nitrous for a speed boost.”