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

• proletariate
• proletariates
• proletariats
• proletaries
• proletary
• prolicidal
• prolicide
• prolicides
• pro-life
• pro-lifer
• proliferate
• proliferated
• proliferates
• proliferating
• proliferation
• proliferations
• proliferative
• proliferous
• proliferously
• pro-lifers
• prolific
• prolificacies
• prolificacy
• prolifical
• prolifically