# Discriminant Definition

dĭ-skrĭmə-nənt

noun

An expression whose value or sign is used to classify functions.

Webster's New World

The definition of a discriminant is some distinguishing characteristic or feature that allows someone or something to be separated from others.

Whether a plant is an annual or a perennial is an example of a discriminant.

YourDictionary

(algebra) An expression that gives information about the roots of a polynomial; for example, the expression *D = b ^{2} - 4ac* determines whether the roots of the quadratic equation

*ax*are real and distinct (

^{2}+ bx + c = 0*D*> 0), real and equal (

*D*= 0) or complex (

*D*< 0).

Wiktionary

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## Other Word Forms of Discriminant

### Noun

Singular:

discriminant
Plural:

discriminants## Related Articles

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### Words Starting With D and Ending With T

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