rotula /rotˈū-lə/

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

• light breeze
• light breezes
• light bulb
• light bulb moment
• light bulb moments
• light bulbs
• light-dues
• lighted
• light-emitting diode
• light-emitting diodes
• lighten
• lightened
• lightener
• lighteners
• light engine
• light engines
• lightening
• lightenings
• lightens
• lighten up
• lighter
• lighterage
• lighterages
• lighterman
• lightermen