Dreg

مترادف و متضاد dreg

1. noun Matter that settles on a bottom or collects on a surface by a natural process.
   Synonyms: Often used in plural: deposit, lees, precipitate, precipitation, sediment
2. noun A group of persons regarded as the lowest class.
   Synonyms: Often used in plural: lumpenproletariat, rabble, ragtag and bobtail, riffraff, trash, scum