pygidium /pī-gidˈi-əm or pī-jidˈi-əm/ (zoology)

1. In insects, the tergum of the last abdominal somite
2. The tail-shield of a trilobite

pygidˈial adjective

• undertints
• undertone
• undertoned
• undertones
• undertook
• under tow
• undertow
• under tow of vessels
• undertows
• undertrick
• under-tunic
• under-tunics
• under-turnkey
• under-turnkeys
• underuse
• underuses
• underutilisation
• underutilise
• underutilised
• underutilises
• underutilising
• underutilization
• underutilize
• underutilized
• underutilizes