rotula /rotˈū-lə/

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

• bumbag
• bum bags
• bumbags
• bumbailiff
• bumbailiff obs; Shakesp bum-baylie
• bumbaze
• bumbazed
• bumbazes
• bumbazing
• bum-bee
• bum-bees
• bumbershoot
• bumbershoots
• bumble
• Bumble
• bumblebee
• bumblebees
• bumbled
• Bumbledom
• bumble-foot
• bumble-puppy
• bumbler
• bumblers
• bumbles
• bumbling