dredge

باللغة العربية: كَسَّاحَة، جَرَّافَة

1. A dragnet for taking up oysters, etc., from their beds.
2. A dredging machine.
3. An iron frame, with a fine net attached, used in collecting animals living at the bottom of the sea.
4. The act of dredging.
5. Very fine mineral matter held in suspension in water.

الجمع dredges