1. plural of nitro; vehicles or engines equipped with nitrous oxide systems for increased power
Usage: informal; automotive slang
2. plural of nitro; nitro-powered drag racing cars or motorcycles
Usage: informal; motorsports

Examples

• He upgraded his car with nitros to improve acceleration.
• The drag racing team's nitros gave them a competitive edge on the track.
• Those nitros can add hundreds of horsepower to an engine.
• She was impressed by how fast the car went once the nitros kicked in.
• The mechanic installed new nitros in the vehicle last week.