1. A numbered main or principal road

Encyclopedia: A road

• Callitrichaceae
• Callitriche
• Callitris
• Callitris calcarata
• Callitris cupressiformis
• Callitris endlicheri
• Callitris glauca
• Callitris glaucophylla
• Callitris parlatorei
• Callitris quadrivalvis
• Callophis
• Callorhinus
• Callorhinus ursinus
• callosectomy
• callosity
• callosotomy
• callous
• calloused
• callously
• callousness
• callow
• callowness
• callsign
• Calluna
• Calluna vulgaris