- an animal or other organism that feeds on dead organic matter.
- a person who searches through and collects items from discarded material.
- a street cleaner.
- a chemical that consumes or renders inactive the impurities in a mixture.
- a person who collects things discarded by others
- any animal that feeds on decaying organic matter, esp on refuse
- a substance added to a chemical reaction or mixture to counteract the effect of impurities
- a person employed to clean the streets
