dredge

Short definition from Wiktionary

Noun

1. 1
   Any instrument used to gather or take by dragging; as: A dragnet for taking up oysters, etc., from their beds.
2. 2
   Any instrument used to gather or take by dragging; as: A dredging machine.
3. 3
   Any instrument used to gather or take by dragging; as: An iron frame, with a fine net attached, used in collecting animals living at the bottom of the sea.
4. 4
   The act of dredging.
5. 5
   Very fine mineral matter held in suspension in water.
6. 6
   A large shaker for sprinkling spices or seasonings during food preparation.
7. 7
   A mixture of oats and barley.

Verb

1. 1
   To make a channel deeper or wider using a dredge.
2. 2
   To bring something to the surface with a dredge.
3. 3
   To unearth.
4. 4
   To sprinkle (food) with spices or seasonings, using a dredge.

Proper noun

1. 1
   A surname.