What is "anesthetizer"

Usage examples of "anesthetizer".

For one thing, take the anesthetizer weapon that we brought from 'Mechanica.

And on into the surgical unit, where Bardie began hooking up the heart-lung machines and the auxiliary anesthetizer while Nellie slipped a shunt into the relatively undamaged right arm to start the flow of supplements into his bloodstream and to service his bodily fluids.