1. Occurring once in five years, or at the end of every five years; also, lasting five years. A quinquennial event

Encyclopedia: Quinquennial

• gas maser
• gas meter
• gas mileage
• gas oil
• gas oven
• gas pedal
• gas phlegmon
• gas plant
• gas pressure
• gas pump
• gas range
• gas ring
• gas service
• gas shell
• gas station
• gas stove
• gas system
• gas tank
• gas thermometer
• gas turbine
• gas up
• gas well
• gas-cooled reactor
• gas-discharge lamp
• gas-discharge tube