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

• citric acid
• citric acid cycle
• citrin
• citrine
• citron
• citron tree
• Citroncirus
• Citroncirus webberi
• citronella
• citronwood
• citrophilous mealybug
• citrophilus mealybug
• citrous
• citrous fruit
• citrulline
• Citrullus
• Citrullus vulgaris
• citrus
• Citrus aurantifolia
• Citrus aurantium
• Citrus bergamia
• Citrus decumana
• citrus fruit
• Citrus grandis
• Citrus limetta