Definition of residue
a : the part of a testator's estate remaining after the satisfaction of all debts, charges, allowances, and previous devises and bequests
b : the remainder after subtracting a multiple of a modulus from an integer or a power of the integer that can appear as the second of the two terms in an appropriate congruence 2 and 7 are residues of 12 modulo 5
c : a constituent structural unit (such as a group or monomer) of a usually complex molecule amino acid residues from hydrolysis of protein
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