discriminant

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discriminant

noun discriminants

An expression that gives information about the roots of a polynomial; for example, the expression D = b² - 4ac determines whether the roots of the quadratic equation ax² + bx + c = 0 are real and distinct (D > 0), real and equal (D = 0) or complex (D < 0).
The invariant (on the vector space of forms of degree d in n variables) that vanishes exactly when the corresponding hypersurface in Pⁿ⁻¹ is singular.

adjective more discriminant · most discriminant

Serving to discriminate.

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Every language

noun in algebra

Español	discriminante
日本語	判別式 hanbetsushiki
中文	判別式 /判别式 pànbiéshì
Français	discriminant
Ελληνικά	διακρίνουσα diakrínousa
Română	discriminant
Русский	дискримина́нт diskriminánt

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MLA

"discriminant." Wiktionary, via Micwyn, micwyn.com/word/discriminant. Accessed 6 Nov. 2026.

APA

discriminant. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/discriminant

Chicago

"discriminant." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/discriminant.

BibTeX

@misc{discriminant_2026,
  title = {discriminant},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/discriminant},
  urldate = {2026-11-06}
}