The substance that remains after evaporation, distillation, filtration or any similar process.
A molecule that is released from a polymer after bonds between neighbouring monomers are broken, such as an amino acid in a polypeptide chain.
Whatever property or effects are left in an estate after payment of all debts, other charges and deduction of what is specifically bequeathed by the testator.
Whatever remains after something else has been removed.
A form of complex number, proportional to the contour integral of a meromorphic function along a path enclosing one of its singularities.
A layer of impurities that accumulates at the surface of a liquid (especially molten metal or water).
Semen.
A greenish water vegetation (such as algae), usually found floating on the surface of ponds
A reprehensible person or persons.
The topmost liquid layer of a cesspool or septic tank.
To remove (something) as scum.
To startscum or savescum.
To remove the layer of scum from (a liquid etc.).
To become covered with scum.