uni·ax·i·al /ˌjuniˈæksiəl/
(a.)單軸的
uniaxial
單軸
U·ni·ax·i·al a.
1. Crystallog. 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. Having only one axis; developing along a single line or plane; -- opposed to multiaxial.
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