### Definitions Found:

# (of a quantity) not capable of being expressed in rational numbers; irrational

- surd(of a quantity) not capable of being expressed in rational numbers; irrational
- surds(of a quantity) not capable of being expressed in rational numbers; irrational
- irrational(of a number, quantity, or expression) Not expressible as a ratio of two integers, and having an infinite and nonrecurring expansion when expressed as a decimal. Examples of irrational numbers are the number p and the square root of 2