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Residue may refer to:

In science and technology:

  • Residue (chemistry), material remaining after a distillation or an evaporation, or portion of a larger molecule
    • In particular, in biology, often refers specifically to an amino acid
  • The heavier fractions of crude oil that fail to vaporize in an oil refinery
  • Crop residue, materials left after agricultural processes

In mathematics:

Residue may also be:

  • A variant title of a British folk song also known as Levy-Dew and New Year Carol.
  • Residue (law), portion of the testator's estate that is not specifically devised to someone in the will
  • residual value