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

• acrophony
• acropolis
• acropolises
• acrosome
• acrosomes
• acrospire
• acrospires
• across
• across lots
• across the board
• across-the-board
• across-the-table
• across the tracks
• across the way
• acrostic
• acrostically
• acrostics
• acroter
• acroteria
• acroterial
• acroterion
• acroterium
• acrotism
• acrotisms
• acrylaldehyde