noun

1. A part or parts remaining after some has/have been removed.

   “My son ate part of his cake and I ate the remainder.”

2. The amount left over after subtracting the divisor as many times as possible from the dividend without producing a negative result. If (n) (dividend) and d (divisor) are integers, then (n) can always be expressed in the form n = dq + r, where q (quotient) and r (remainder) are also integers and 0 ≤ r < d.

   “11 divided by 2 is 5 remainder 1.”

3. The number left over after a simple subtraction

   “10 minus 4 leaves a remainder of 6”

Synonyms: lave, remnant, residue, rest, surplus

verb

1. To mark or declare items left unsold as subject to reduction in price.

   “The bookstore remaindered the unsold copies of that book at the end of summer at a reduced price.”

adjective

1. Remaining.

Synonyms: leftover