There are 2 main definitions of dredge in English:

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dredge1

Line breaks: dredge
Pronunciation: /drɛdʒ
 
/

verb

[with object]
1Clear the bed of (a harbour, river, or other area of water) by scooping out mud, weeds, and rubbish with a dredge: the lower stretch of the river had been dredged (as noun dredging) the dredging and deepening of the canal
More example sentences
  • If more effort were put into ensuring rivers and watercourses were properly dredged and cleared of weed and vegetation, it may have helped to contain the water, he said.
  • At a cost of $133 million, the harbour was dredged and a dock constructed, abandoned oil wells were plugged and petroleum infrastructure relocated.
  • ‘We are also aiming at improving the quality of the environment by organizing a number of programs to dredge rivers, and reduce foul water and vehicle emissions,’ he said.
1.1Bring up or clear (something) from a river, harbour, or other area of water with a dredge: mud was dredged out of the harbour [no object]: they start to dredge for oysters in November
More example sentences
  • As such, there is limited information on this topic, although as noted, most recreational fishers dive rather than dredge for scallops.
  • To begin, it is important that everyone realize that this boat was originally built to dredge for oysters.
1.2 (dredge something up) Bring something unwelcome and forgotten or obscure to people’s attention: I don’t understand why you had to dredge up this story
More example sentences
  • However, I have a sneaking suspicion that Amanda would be happier if we could all just forget about the incident, so I shan't dredge it up again here.
  • It took a moment to dredge his name up out of her memory, but she could hardly forget the handsome face of the boy who had rescued her from being a hostage in the first game, whom she had later run away from once he insulted her.
  • These half-memories have been dredged up from the back of my mind, but it's something that I've been meaning to write about for years, so I'd love to know what you think.

noun

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An apparatus for bringing up objects or mud from a river or seabed by scooping or dragging.
Example sentences
  • She could spend a morning describing how the Army Corps of Engineers, with massive dredges, keeps the rivers flowing along the paths shown on maps.
  • What goes on up here at The Labs is marine biology, where students learn to appreciate what the dredge brings up from the muddy bottom.
  • Around 1976, a dredge was brought in to deepen the harbor.

Origin

late 15th century (as a noun; originally in dredge-boat): perhaps related to Middle Dutch dregghe 'grappling hook'.

Definition of dredge in:

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There are 2 main definitions of dredge in English:

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dredge2

Line breaks: dredge
Pronunciation: /drɛdʒ
 
/

verb

[with object]
Sprinkle (food) with a powdered substance such as flour or sugar: dredge the bananas with sugar and cinnamon
More example sentences
  • Do not dredge the pasta in flour to prevent sticking, as the flour turns to glue when cooked and, ironically, causes the pasta to stick together (using semolina flour from Italian delis instead will help).
  • Season sweetbreads with salt and pepper and dredge in flour.
  • Season the frog's legs with salt and pepper and dredge in the flour.

Origin

late 16th century: from obsolete dredge 'sweetmeat, mixture of spices', from Old French dragie, perhaps via Latin from Greek tragēmata 'spices'. Compare with dragée.

Definition of dredge in:

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