Ma'anar ƙamus na kalmar "dredger" shine inji ko jirgin ruwa da ake amfani dashi don tono ko tattara laka, yashi, ko wani abu daga kasan magudanar ruwa, tashar jiragen ruwa, ko tashar jiragen ruwa, kuma yawanci ya ƙunshi guga, diba, ko na'urar tsotsa. Ana yawan amfani da Dredgers don share tashoshi da ƙirƙira ko kiyaye tashoshin kewayawa don jiragen ruwa da jiragen ruwa. Kalmar kuma tana iya nufin mutumin da ke sarrafa injin ko jirgin ruwa.