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

• Theban
• the bane of one's life
• Theban year
• the Bard
• the Bay State
• thebe
• the Beast
• the beast with two backs
• the beautiful people
• the bee's knees
• the belief
• the bends
• Thebes
• the better part of
• the Beyond
• the Big Apple
• the Big C
• the big cats
• the big enchilada
• the Big Smoke
• the big stick
• the birds and the bees
• the bishop has put his foot in it
• the bitch goddess
• the biter bit