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

• line feed
• line feeds
• line-fence
• line-fences
• line-fish
• line-fisher
• line-fisherman
• line-fishers
• line-fishes
• line-fishing
• line-grove
• line-groves
• line item
• line-item veto
• line judge
• line judges
• lineman
• line management
• line manager
• linemen
• earings
• ear-kissing
• earl
• earlap
• earlaps