irrational number
noun
Definition of irrational number
: a number that can be expressed as an infinite decimal with no set of consecutive digits repeating itself indefinitely and that cannot be expressed as the quotient of two integers
Explore M-W
First Known Use of irrational number
1551
Learn More about irrational number
-
Britannica.com: Encyclopedia article about irrational number
Seen and Heard
What made you want to look up irrational number? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!