dredge - definition and synonyms

verb [transitive] 

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present tense
present participledredging
past tensedredged
past participledredged
  1. 1
    to remove dirt and sand from the bottom of a river or lake
     Synonyms and related words
    1. a.
      to look for something at the bottom of a river or lake using a dredger
  2. 2
    to shake something such as sugar or flour over something

phrasal verbs