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
verb
3. (transitive)
to remove (a gas) by the action of a getter
getter in American English
(ˈgɛtər)
noun
1.
one that gets
2.
a substance, esp. a metal, added in small amounts to a semiconductor, vacuum tube, etc. to attract and remove unwanted or residual impurities
3. Canadian
poisoned bait for farm pests
Examples of 'getter' in a sentence
getter
He might be a goal getter supreme but he is also the ultimate team player.