biaxial

[ bahy-ak-see-uhl ]

adjective

1. having two axes.
2. Crystallography. having two optical axes along which double refraction does not occur.

biaxial

/ baɪˈæksɪəl /

adjective

1. (esp of a crystal) having two axes

Other Words From

• bi·axi·ali·ty noun
• bi·axi·al·ly adverb

Word History and Origins

Origin of biaxial¹

First recorded in 1850–55; bi- ¹ + axial

Example Sentences

Though closely resembling the tetragonal torbernite in form, it crystallizes in the orthorhombic system and is optically biaxial.

From Project Gutenberg

Thin sections show twin-lamellae, and a division into definite areas which are optically biaxial.

From Project Gutenberg