rotula /rotˈū-lə/

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

• sweepstake
• sweepstakes
• sweep the board
• sweep under the carpet
• sweep-washer
• sweep-washers
• sweepy
• sweer
• sweered
• sweert
• swees
• sweet
• sweet ale
• sweet alyssum
• sweet-and-sour
• sweet-and-twenty
• sweet basil
• sweet bay
• sweet bays
• sweetbread
• sweetbreads
• sweetbriar
• sweetbriars
• sweetbrier
• sweetbriers