A chemical agent that is added to a chemical mixture to counteract the effects of impurities.

Roget 652: cleanness, cleanliness etc. adj.; purity; cleaning etc. v.; purification, defecation etc. v.; purgation, lustration^†; detersion^†, abstersion^†; epuration^†, mundation^†; ablution, lavation^†, colature^†; disinfection etc. v.; drainage, sewerage.    lavatory, laundry, washhouse^†; washerwoman, laundress, dhobi^†, laundryman, washerman^†; scavenger, dustman^†, sweep; white wings brush [U.S.]; broom, besom^†, mop, rake, shovel, sieve, riddle, screen, filter; blotter.    napkin, cloth, maukin^†, malkin^†, handkerchief, towel, sudary^†; doyley^†, doily, duster, sponge, mop, swab.    cover, drugget^†.    wash, lotion, detergent, cathartic, purgative; purifier etc. v.; disinfectant; aperient^†; benzene, benzine benzol, benolin^†; bleaching powder, chloride of lime, dentifrice, deobstruent^†, laxative.    ... show more

Someone who collects things that have been discarded by others.

synonyms: magpie, pack rat.

Dutch: zwartrugfluitvogel, ekster

Any animal that feeds on refuse and other decaying organic matter.

Dutch: jutter, straatveger, aasdier, aaseter
Polish: padlinożerca, ścierwojad