/ ˈrezɪdjuː; NAmE -duː/ noun
1.
a small amount of sth that remains at the end of a process :
pesticide residues in fruit and vegetables
2.
( law ) the part of the money, property, etc. of a person who has died that remains after all the debts, gifts, etc. have been paid :
The residue of the estate was divided equally among his children.
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WORD ORIGIN
late Middle English : from Old French residu , from Latin residuum something remaining, neuter of residuus remaining, from the verb residere .