Quencher

verb

1. satisfy (thirst)

   “The cold water quenched his thirst”

   Synonymsslakeallayassuage

2. put out, as of fires, flames, or lights

   “Too big to be extinguished at once, the forest fires at best could be contained”

   Synonymssnuff outblow outextinguish

3. electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device

4. suppress or crush completely

   “squelch any sign of dissent”

   Synonymssquelchquell

5. reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance

6. cool (hot metal) by plunging into cold water or other liquid

   “quench steel”