1. Having only one axis; developing along a single line or plane 
2. Having but one optic axis, or line of no double refraction

Encyclopedia: Uniaxial

• gamut
• gamy
• Gan Jiang
• Ganapati
• Gand
• gand flower
• gander
• refractometer
• refractor
• refractoriness
• refractory
• refractory anaemia
• refractory anemia
• refractory period
• refractory pot
• refractory-lined
• refracture
• refrain
• reframe
• refrangible
• refresh
• refreshed
• refreshen
• refresher
• refresher course