acetabulum /a-si-tabˈū-ləm or -sē-/ (zoology)

1. The hollow that receives the head of the thigh bone
2. One of the cotyledons of the placenta of ruminants
3. The cavity that receives a leg in the body of insects
4. (in various invertebrates) a sucker

• -ulent
• ules
• ulex
• ulexes
• ULF
• ulices
• ulichon
• ulicon
• uliginose
• uliginous
• ulikon
• ulitis
• ulitises
• ullage
• ullaged
• ullages
• ullaging
• ulling
• ullings
• Ulmaceae
• ulmaceous
• ulmin
• unbeguiles
• unbeguiling
• unbegun