suppressor(redirected from Supressor)
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In general, a device used to reduce or eliminate noise or other signals that interfere with the operation of a communication system, usually at the noise source.
Specifically, a resistor used in series with a spark plug or distributor of an automobile engine or other internal combustion engine to suppress spark noise that might otherwise interfere with radio reception.
In an analytical procedure, a substance added to the analyte to reduce the extraneous emission, absorption, or light scattering caused by the presence of an impurity.