Pronunciation: (kwench),[key] —v.t. 1. to slake, satisfy, or allay (thirst, desires, passion, etc.).
2. to put out or extinguish (fire, flames, etc.).
3. to cool suddenly by plunging into a liquid, as in tempering steel by immersion in water.
4. to subdue or destroy; overcome; quell: to quench an uprising. 5. Electronics.to terminate (the flow of electrons in a vacuum tube) by application of a voltage.