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.

   You can have the remainder of my clothes.

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

   17 leaves a remainder of 2 when divided by 3.

   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

4. Excessive stock items left unsold and subject to reduction in price.

   I got a really good price on this shirt because it was a remainder.

5. An estate in expectancy which only comes in its heir's possession after an estate created by the same instrument has been determined

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.