rotula /rotˈū-lə/

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

• palmers
• palmer-worm
• palmer-worms
• palmette
• palmettes
• palmetto
• palmettoes
• palmettos
• palmful
• palmfuls
• palm-grease
• palm-greases
• palm-honey
• palmhouse
• palmhouses
• palmie
• palmier
• palmies
• palmiest
• palmiet
• palmiets
• palmification
• palmifications
• palming
• palmiped