[drej] 
noun, verb, dredged, dredg⋅ing.| 1. | Also called dredging machine. any of various powerful machines for dredging up or removing earth, as from the bottom of a river, by means of a scoop, a series of buckets, a suction pipe, or the like. |
| 2. | a barge on which such a machine is mounted. |
| 3. | a dragnet or other contrivance for gathering material or objects from the bottom of a river, bay, etc. |
| 4. | to clear out with a dredge; remove sand, silt, mud, etc., from the bottom of. |
| 5. | to take, catch, or gather with a dredge; obtain or remove by a dredge. |
| 6. | to use a dredge. |
| 7. | dredge up,
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