Word
scum, n.
(scums)
a film of impurities or vegetation that can form on the surface of a liquid
<noun.artifact>
scum
lexical pointers
derivationally related form
scummy
scum
semantic pointers
hypernym
film
hyponym
slag, scoria, dross
worthless people
<noun.group>
scum
trash
semantic pointers
hypernym
rabble, riffraff, ragtag, ragtag and bobtail