rotula /rotˈū-lə/

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

• check-up
• check-ups
• checkweigher
• checkweighers
• checkweigh man
• checkweigh men
• checky
• Cheddar
• Cheddar pink
• cheddite
• cheddites
• cheder
• cheders
• cheechako
• cheechakoes
• cheechakos
• cheechalko
• chee-chee
• chee-chees
• cheek
• cheekbone
• cheekbones
• cheek by jowl
• cheeked
• cheekier