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

• stream
• stream anchor
• stream anchors
• streamed
• streamer
• streamered
• streamers
• stream-gold
• stream-ice
• streamier
• streamiest
• streaminess
• streaminesses
• streaming
• streamingly
• streamings
• streamless
• streamlet
• streamlets
• streamline
• streamlined
• streamlines
• streamling
• streamlings
• streamlining