35 entries under layer topic. ×

82
froth(noun, verb, state, skim, uncleanness)
80
foam(noun, verb, state, skim)
9
dross(noun, waste, refuse, rest, trash)
5
crust(noun, dirt, impurities, dirty froth)
5
residue(noun, part, waste, refuse, rest)
4
dirt(noun, mess, stain, pollution, corruption)
4
filth(noun, waste, refuse, mess)
4
waste(noun, refuse, trash, rubbish)
3
membrane(noun, covering, fold, coat, cloud)
2
cloud(covering, fold, coat, obscurity)
2
coat(covering, fold, cloud, obscurity)
2
coating(covering, fold, coat, cloud, obscurity)
2
covering(coat, obscurity, fogginess, mistiness)
2
foil(covering, fold, coat, cloud, obscurity)
2
fold(covering, coat, cloud, obscurity)
2
leaf(covering, fold, coat, cloud, obscurity)
2
pellicle(covering, fold, coat, cloud, obscurity)
2
sheet(covering, fold, coat, cloud, obscurity)
2
skin(noun, covering, fold, coat, cloud)
2
veil(covering, coat, obscurity, fogginess)
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APASmart Define. (2015). scum thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/scum/thesaurus/synonyms
ChicagoSmart Define. 2015. "scum thesaurus" https://smartdefine.org/scum/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, scum thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/scum/thesaurus/synonyms>.
MLASmart Define. "scum thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/scum/thesaurus/synonyms>