conic section directrix

noun

A fixed straight line that, along with the focus, defines the set of points on a conic section.

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Meanings

nounconic section directrix (plural conic section directrixes or conic section directrices)

plural conic section directrixes · plural conic section directrices

  1. geometryA fixed straight line that, along with the focus, defines the set of points on a conic section.
Cite this entry
APA

conic section directrix. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/conic%20section%20directrix

MLA

“conic section directrix.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/conic%20section%20directrix. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “conic section directrix,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/conic%20section%20directrix.

Source: conic section directrix on Wiktionary, CC BY-SA 4.0.