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

• spider phaeton
• spider plant
• spider plants
• spiders
• spider spanner
• spider stitch
• spider web
• spider webs
• spider wheel
• spider wheels
• spiderwork
• spiderworks
• spiderwort
• spiderworts
• spider wrench
• spider wrenches
• spidery
• spie
• spied
• spiegeleisen
• spiegeleisens
• spiel
• spieled
• spieler
• spielers