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

acetabˈūlar adjective

• tide gates
• tide gauge
• tide gauges
• tideland
• tidelands
• tideless
• tide lock
• tide locks
• tidemark
• tidemarks
• tidemill
• tidemills
• tide over
• tide race
• tide races
• tide rip
• tide rips
• tides
• tidesman
• tidesmen
• tide table
• tide tables
• tidewaiter
• tidewaiters
• tidewaitership