Uniaxial
Pronunciation : U`ni*ax"i*al
Part of Speech : a.
Etymology : [Uni + axial.]
Definition : 1. (Crystallog.)
Defn: Having but one optic axis, or line of no double refraction.
Note: In uniaxial crystals, the optic axis has the direction of the vertical crystallographic axis. All tetragonal and hexagonal crystals are uniaxial.
2. (Biol.)
Defn: Having only one axis; developing along a single line or plane; -- opposed to multiaxial.
Source : Webster's Unabridged Dictionary, 1913