Wordnet Dictionary

Welcome

Wordnet Dictionary
Noun sludge has 2 senses
  1. sludge - the precipitate produced by sewage treatment
    --1 is a kind of     precipitate
  2. sludge, slime, goo, gook, guck, gunk, muck, ooze - any thick messy substance
    --2 is a kind of substance, matter
    --2 has particulars: sapropel
,
TOP