acetabulum

play
noun ac·e·tab·u·lum \ -ˈta-byə-ləm \

Definition of acetabulum

plural acetabulums or acetabula play \-lə\
1 :a ventral sucker of a trematode
2 :the cup-shaped socket in the hipbone

acetabular

play \-lər\ adjective

Recent Examples of acetabulum from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'acetabulum.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Origin and Etymology of acetabulum

Latin, literally, vinegar cup, from acetum vinegar


Medical Dictionary

acetabulum

play
noun ac·e·tab·u·lum \ -ˈtab-yə-ləm \

medical Definition of acetabulum

plural acetabulums or acetabula play \-lə\
1 :the cup-shaped socket in the hip bone
2 :a sucker of an invertebrate (as a trematode or leech)

acetabular

play \-lər\ adjective

Illustration of acetabulum


Learn More about acetabulum


Seen and Heard

What made you want to look up acetabulum? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to curse or denounce

Get Word of the Day daily email!

Test Your Vocabulary

Merriam-Webster's New Words Quiz—Fall 2017 Edition!

  • young-plant-shoots
  • Which of the following is a new sense of the word bunny?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!