Quench (Verb)
Meaning 1
Satisfy (thirst); "The cold water quenched his thirst".
Classification
Verbs of eating and drinking.
Synonyms
Hypernyms
Meaning 2
Cool (hot metal) by plunging into cold water or other liquid; "quench steel".
Classification
Verbs of size, temperature change, intensifying, etc..
Hypernyms
Meaning 3
Suppress or crush completely; "squelch any sign of dissent"; "quench a rebellion".
Classification
Verbs of size, temperature change, intensifying, etc..
Synonyms
Hypernyms
Meaning 4
Reduce the degree of (luminescence or phosphorescence) in (excited molecules or a material) by adding a suitable substance.
Classification
Verbs of size, temperature change, intensifying, etc..
Examples
- The addition of paramagnetic ions can quench the luminescence of Europium by altering its excited state dynamics.
- High concentrations of dissolved oxygen can quench the phosphorescence of photosensitizers, reducing their effectiveness.
- Adding CuSO4 to the solution will quench the fluorescence of the Rhodamine-based dye molecules, enabling us to study their interaction.
- The presence of hemoglobin quenches the luminescence of zinc sulfide nanocrystals, reducing their brightness.
- Using potassium iodide can quench the chemiluminescence of the compound during an oxidative reaction.
Hypernyms
Meaning 5
Put out, as of fires, flames, or lights; "Too big to be extinguished at once, the forest fires at best could be contained"; "quench the flames"; "snuff out the candles".
Classification
Verbs of raining, snowing, thawing, thundering.
Synonyms
Hyponyms
Related Words
Meaning 6
Electronics: suppress (sparking) when the current is cut off in an inductive circuit, or suppress (an oscillation or discharge) in a component or device.
Classification
Verbs of political and social activities and events.
Examples
- A snubber diode can quench the high voltage transient produced by an inductive load when the current is suddenly interrupted.
- The quenching circuit of a relay helps prevent sparks when de-energizing the coil.
- A resistor-capacitor network can be used to quench oscillations in the output stage of the amplifier.
- The inrush current limiter is able to quench excessive current during the transient startup phase.
- A DC-DC converter may include a quench circuit to protect against back-EMF in case of coil failure.