GP moves cautiously and cleans out bed

• Deepens a channel
• Searches the river
• Scoops up river sediment
• Giant silt removers
• Scrapes the bottom
• Removes silt
• Scrapes (river bottom)
• Sprinkles powder on tidied hair, both at the back and fringes

Wiktionary Word definitions in Wiktionary
n. (plural of dredge English) vb. (en-third-person singular of: dredge )