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

• secodont
• Seconal
• second
• Second Advent
• second-adventist
• second-adventists
• secondaries
• secondarily
• secondariness
• secondarinesses
• secondary
• secondary action
• secondary actions
• secondary alcohol
• secondary batteries
• secondary battery
• secondary causes
• secondary cell
• secondary cells
• secondary coil
• secondary coils
• secondary colour
• secondary colours
• secondary electron
• secondary electrons