scrubber

noun ! Definition from WordNet 3.1, Princeton University. Pronunciation from Wiktionary, via Kaikki.org. More about scrubber at Wordnik → Where our words come from →

1. A worker who uses a scrub brush to clean a surface (usually a floor or deck).
2. A brush with short stiff bristles for heavy cleaning.
3. A purifier that removes impurities from a gas.