Main Entry: ac·e·tab·u·lum

Pronunciation: \-ˈta-byə-ləm\

Function: noun

Inflected Form(s): plural ac·e·tab·u·lums or ac·e·tab·u·la \-lə\

Etymology: Latin, literally, vinegar cup, from acetum vinegar

Date: 1661

1 : a ventral sucker of a trematode
2 : the cup-shaped socket in the hipbone

— ac·e·tab·u·lar \-lər\ adjective