rotula /rotˈū-lə/

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

• betters
• better than a poke in the eye
• better than a poke in the eye with a sharp stick
• betties
• betting
• bettings
• betting shop
• betting shops
• bettong
• bettongs
• bettor
• bettors
• betty
• blow-off
• blow on
• blow one's brains out
• blow one's mind
• blow one's own trumpet
• blow one's stack
• blow one's top
• blow out
• blow-out
• blow-out preventer
• blow-outs
• blow over