Noun
A device used to suppress ("snub") voltage transients in electrical systems, pressure transients in fluid systems, or excess force or rapid movement in mechanical systems.
(rare) One who snubs.
Source: en.wiktionary.orgIn this case a snubber circuit (a capacitor and resistor in series) across the contacts may absorb the surge. Source: Internet
The spark will cause electromagnetic interference if not suppressed; a snubber network of a resistor and capacitor in series will quell the spark. Source: Internet