Learn how to say Acetabula correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word acetabulum:
noun (plural acetabula /-lə/)
1 Anatomy the socket of the hip bone, into which the head of the femur fits.
2 Zoology any cup-shaped structure, especially a sucker.
late Middle English (denoting a vinegar cup, hence a cup-shaped cavity): from Latin, from acetum ‘vinegar’ + -abulum, denoting a container