Scrubber
Scrubber (skrub"bẽr) , noun
1.
One who, or that which, scrubs; esp., a brush or machine used in scrubbing.
2.
(Gas Manufacturing) A gas washer. See under Gas.
3.
(Manufacturing) a device for removing pollutants from a gas stream, especially for removing sulfur oxides from processes burning coal or oil.
Scrubber (skrub"bẽr) , noun
1.
a stunted or emaciated steer.
2.
A person who lives in the bush. [Australian]
3.
A domesticated animal which has escaped and lives wild in the bush. [Australian]