obtuse bisectrix

noun Crystallography.

See under bisectrix(def 1).

Origin of obtuse bisectrix

First recorded in 1895–1900

Definition for obtuse bisectrix (2 of 2)

[ bahy-sek-triks ]
/ baɪˈsɛk trɪks /

noun, plural bi·sec·tri·ces [bahy-sek-trahy-seez] /ˌbaɪ sɛkˈtraɪ siz/.

Crystallography. an imaginary line bisecting either the acute angle (acute bisectrix) or the obtuse angle (obtuse bisectrix) of the optic axes of a biaxial crystal.
Geometry. a bisector.

Origin of bisectrix

First recorded in 1850–55; bisec(t) + -trix
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

British Dictionary definitions for obtuse bisectrix

/ (baɪˈsɛktrɪks) /

noun plural bisectrices (baɪˈsɛktrɪˌsiːz)

another name for bisector
the bisector of the angle between the optic axes of a crystal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012