rotula /rotˈū-lə/

1. The knee-cap (anatomy)
2. A radial piece of Aristotle's lantern in sea-urchins (zoology)

• corneas
• corned
• corned beef
• cornel
• cornelian
• cornelian cherries
• cornelian cherry
• cornelians
• cornels
• cornemuse
• cornemuses
• corneous
• corner
• cornerback
• cornerbacks
• corner-boy
• corner-boys
• cornered
• cornering
• corner-man
• corner-men
• corners
• cornerstone
• cornerstones
• corner teeth