1. The act of taking off scum 
2. (usually plural) that which is scummed off; skimmings; scum

1. Remove the scum from

Derived forms: scummings

Type of: get rid of, remove

Encyclopedia: Scum

• keel-shaped
• keelage
• keelboat
• keeled
• keeled garlic
• keelhaul
• keelson
• keen
• keen-eyed
• keen-sighted
• keenly
• keenness
• keep
• keep abreast
• keep an eye on
• keep apart
• keep away
• keep back
• keep company
• keep down
• keep fit
• keep going
• keep guard
• keep in
• keep in line