Crossword clues for dredges dredges Scrapes (river bottom) Scoops up river sediment Removes silt Land-reclamation machines Earth-moving machines Deepens, as a canal Coats with flour Channel changers? Deepens a channel GP moves cautiously and cleans out bed Sprinkles powder on tidied hair, both at the back and fringes Searches the river Giant silt removers Scrapes the bottom Scrapes (riverbed) Wiktionary dredges n. (plural of dredge English) vb. (en-third-person singular of: dredge)