rotula /rotˈū-lə/

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

• selfies
• self-image
• self-immolation
• self-importance
• self-important
• self-importantly
• self-imposed
• self-impregnation
• self-impregnations
• self-improvement
• self-incompatibility
• self-incompatible
• self-induced
• self-inductance
• self-induction
• self-inductive
• self-indulgence
• self-indulgences
• self-indulgent
• self-indulgently
• self-infection
• self-infections
• self-inflicted
• selfing
• selfings