Simple past tense and past participle of dredge.(verb)
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Use "dredged" in a sentence
"But I thought the more notable aspect of the speech was that this was a term dredged up from the lowest and most radical blogospheric swamps, which have long used that term when discussing The Terrorists."
"The EPA also permitted coal ash dredged from the Tennessee spill site to be transferred to a dry landfill in high-poverty areas in rural Alabama and Georgia."
"One day, on the mud-flat side of the Rock Wall, an Italian fishing boat hauled up on the sand dredged from the channel."