a. = next. Biaxality, biaxial character.
1837. Whewell, Hist. Induct. Sc. (1857), II. 296. Its crystalline symmetry is biaxal.
1869. Tyndall, Notes Light, § 423. Biaxal crystals, or those which possess two optic axes.
1864. Reader, 85. 206/2. The biaxality ascribed to it.
