— scumless , adj. — scumlike , adj.
/skum/ , n. , v. , scummed, scumming .
n.
1. a film or layer of foul or extraneous matter that forms on the surface of a liquid.
2. refuse or offscourings.
3. a low, worthless, or evil person.
4. such persons collectively; riffraff; dregs.
5. scoria (def. 1).
v.t.
6. to remove the scum from.
7. to remove as scum.
v.i.
8. to form scum; become covered with scum.
[ 1200-50; ME scume schume (D schuim ) foam; c. G Schaum foam ]