rotula /rotˈū-lə/

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

• attenuated vaccines
• attenuates
• attenuating
• attenuation
• attenuations
• attenuator
• attenuators
• attercop
• attercops
• attest
• attestable
• attestation
• attestations
• attestative
• attested
• attester
• attesters
• attesting
• attestor
• attestors
• attests
• Att.-Gen.
• at that
• at the bar
• at the best of times