irrational number
Plural
irrational numbers
1
a number incapable of being expressed as a ratio of two integers
- The square root of 2 is an irrational number.
- The decimal form of an irrational number goes on forever without repeating.
- Irrational numbers cannot be written as simple fractions.
- The square root of 3 is an irrational number because it cannot be written as a fraction.
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