n. A bush-harrow; a large rake.n. Any instrument for bringing up or removing solid substances from under water by dragging on the bottom.n. An apparatus for bringing up marine animals, plants, and other objects from the bottom of the sea for scientific investigation. It consists principally of a frame of iron and a net which is attached to the frame. As generally constructed, the frame is transversely oblong, generally about three times as long as wide, with straight ends and slightly inclined sides, having the outer edges sharp to serve as scrapers. The net is usually composed of heavy twine, but sometimes of iron chainwork, and is attached to the frame by holes near the inner edges. Fastened to the frame are iron handles, to which a rope or iron chain is attached.n. A machine for clearing the beds of canals, rivers, harbors, etc. See dredging-machine.n. In ore-dressing, in certain mining districts of England, ore which is intermediate in rich ness between “prill-ore”; and “halvans”; ore of second quality, more or less intermixed with veinstone. Sometimes written dradge.To clear out with a dredge; remove sand, silt, mud, etc., from the bottom of: as, to dredge a harbor, river, or canal.To take, catch, or gather with a dredge; obtain or remove by the use of a dredge: as, to dredge mud from a river.To make use of a dredge; operate with a dredge: as, to dredge for oysters.n. Formerly, same as meslin; now, specifically, a mixture of oats and barley sown together.To sprinkle flour upon, as roasting meat.