1. A filmy layer of extraneous or impure matter that forms on or rises to the surface of a liquid or body of water. 2. The refuse or dross of molten metals. 3. Refuse or worthless matter. 4.Slang One, such as a person or an element of society, that is regarded as despicable or worthless.
VERB:
Inflected forms: scummed, scum·ming, scums
TRANSITIVE VERB:
To remove the scum from.
INTRANSITIVE VERB:
To become covered with scum.
ETYMOLOGY:
Middle English, from Middle Dutch schm. See (s)keu- in Appendix I.
sk
m
m. See (s)keu- in Appendix I.
mer —NOUN
