bisectrix

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noun

The line bisecting the angle between the optic axes of a biaxial crystal.

“acute bisectrix”

Scrabble 20
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Meanings

nounbisectrix (plural bisectrixes or bisectrices)

plural bisectrixes · plural bisectrices

  1. chemistryThe line bisecting the angle between the optic axes of a biaxial crystal.

    acute bisectrix

    2 more examples

    1911 — Encyclopædia Britannica, "Microcline"

    In a section parallel to the basal plane c (001) of a microcline crystal the lamellae do not extinguish optically parallel to the edge bc as in orthoclase, but at an angle of 15° 30′; further, the obtuse bisectrix of the optic axes in microcline is inclined to the normal of the plane b (010) at an angle of 15° 26

Cite this entry
APA

bisectrix. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/bisectrix

MLA

“bisectrix.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/bisectrix. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “bisectrix,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/bisectrix.

Source: bisectrix on Wiktionary, CC BY-SA 4.0.