# Definition:Binomial

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## Disambiguation

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**Binomial** may refer to:

- Euclidean number theory:
- A binomial is a term in the form $a + b$ where $\dfrac a b$ and $a + b$ are irrational, but $\paren {\dfrac a b}^2$ is rational. The concept is considered archaic.

- Algebra:
- A binomial is an expression with two terms, that is, of the form $a + b$, where $a$ and $b$ are such that $a + b$ cannot be simplified.
- Definition:Binomial Coefficient