noun
- irrational numbers that cannot be expressed as exact decimals or simple fractions, especially square roots of non-perfect squares
Usage: mathematics
Examples
- The square root of 2 and the square root of 3 are common examples of surds.
- Students learned to simplify surds by factoring out perfect squares.
- In algebra class, we practiced adding and subtracting surds.
- The expression contained several surds that needed to be rationalized.
- Surds cannot be written as terminating or repeating decimals.
- The teacher explained how to multiply surds together.