To clean out the bed of a body of water by scooping out mud, weeds, and rubbish with a dredge.
The workers dredged the river to improve the flow of water.
To bring up or clear something from a river, harbor, or other area of water with a dredge.
They dredged up old shipwrecks from the bottom of the ocean.
To sprinkle or coat food lightly with a powdered substance, such as flour or sugar.
Before frying, dredge the chicken pieces in flour to give them a crispy coating.
To search through or investigate thoroughly in order to locate something, often with great effort; frequently followed by "for" or used with the particle "up".
She dredged her bag for loose change before getting on the bus.