1. Having six sides or divided into hexagons
   - hexagonal

See also: hexagon

• Corvus brachyrhyncos
• Corvus corax
• Corvus frugilegus
• Corvus monedula
• corvée
• Coryanthes
• Corybant
• Corybantic
• Corydalidae
• corydalis
• Corydalis claviculata
• Corydalis sempervirens
• Corydalis solida
• Corydalus
• Corydalus cornutus
• Corylaceae
• Corylopsis
• Corylus
• Corylus americana
• Corylus avellana
• Corylus avellana grandis
• Corylus cornuta
• corymb
• corymbose
• Corynebacteriaceae