Residue

Residue may refer to:

Chemistry and biology

• Residue (chemistry), material remaining after a physical separation process, or side-products of a chemical reaction
• An amino acid within a peptide chain
• Crop residue, materials left after agricultural processes
• Pesticide residue
• Petroleum residue, the heavier fractions of crude oil that fail to vaporize in an oil refinery

Mathematics

• Residue (complex analysis), complex number describing the behavior of line integrals of a meromorphic function around a singularity
• Residue (partial fraction decomposition), the numerator of the expanded terms
• The remainder in modular arithmetic

Other

• Residue (law), portion of the testator's estate that is not specifically devised to someone in the will
• Residue (TV series), an English science-fiction series from 2015
• A variant title of a British folk song also known as "Levy-Dew" and "New Year Carol"
• Residual value