Definify.com
Webster 1913 Edition
Uniaxial
Uˊni-ax′i-al
,Adj.
[
Uni
+ axial
.] 1.
(Crystallog.)
Having but one optic axis, or line of no double refraction.
☞ In uniaxial crystals, the optic axis has the direction of the vertical crystallographic axis. All tetragonal and hexagonal crystals are uniaxial.
2.
(Biol.)
Having only one axis; developing along a single line or plane; – opposed to multiaxial.