getter(redirected from Gettering)
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A material added in small amounts during a chemical or metallurgical process to absorb impurities.
1. a person or thing that gets
2. (General Physics) a substance, usually a metal such as titanium, evaporated onto the walls of a vacuum tube, vessel, etc, to adsorb the residual gas and lower the pressure
(General Physics) (tr) to remove (a gas) by the action of a getter
1. a person or thing that gets.
2. any substance introduced into a partial vacuum to combine chemically with the residual gas in order to increase the vacuum.
Past participle: gettered