What is the meaning of Quench?

To satisfy, especially a literal or figurative thirst.

To extinguish or put out (as a fire or light).

To cool rapidly by direct contact with liquid coolant, as a blacksmith quenching hot iron.

To terminate or greatly diminish (a chemical reaction) by destroying or deforming the remaining reagents.

To rapidly change the parameters of a physical system.

To rapidly terminate the operation of a superconducting electromagnet by causing part or all of the magnet's windings to enter the normal, resistive state.

The act of quenching something; the fact of being quenched.

The abnormal termination of operation of a superconducting magnet, occurring when part of the superconducting coil enters the normal (resistive) state.

A rapid change of the parameters of a physical system.

Source: wiktionary.org