residue

C1 · Advanced Uncountable noun Law Formal · Technical

n. the part of a person's money or property that is left after all debts and specific gifts are paid.

n. the portion of a testator's estate remaining after the payment of debts, funeral expenses, and specific legacies.

“After the house was sold and the bills were paid, the residue of the money went to charity.”

“The will stipulated that the residue of the estate should be divided equally among the deceased's three grandchildren after all specific bequests were fulfilled.”

C2 · Proficiency Countable noun Mathematics Technical

n. the number that is left over after one number is divided by another.

n. a representative element of an equivalence class; the remainder left after a division operation in modular arithmetic.

“In this calculation, we need to find the residue of seventeen modulo five.”

“The student struggled to calculate the quadratic residue, a fundamental concept in advanced number theory and cryptography.”

C2 · Proficiency Countable noun Science Technical

n. a single part of a larger molecule, like one link in a chain.

n. a specific unit within a polymer, such as a single amino acid within a protein chain.

“The protein is made of a long string of amino acid residues.”

“The researchers identified a specific cysteine residue that was essential for the enzyme's catalytic activity.”