ulna

noun ul·na \ ˈəl-nə \

Definition of ulna

plural ulnae play \ˈəl-nē\ or ulnas
:the bone on the little-finger side of the human forearm; also :a corresponding part of the forelimb of vertebrates above fishes

ulnar

play \ˈəl-nər, -ˌnär\ adjective

Recent Examples of ulna from the Web

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

Origin and Etymology of ulna

New Latin, from Latin, elbow — more at ell


ULNA Defined for English Language Learners

ulna

noun

Definition of ulna for English Language Learners

  • medical : the bone in the lower part of your arm on the side that is opposite to your thumb


ULNA Defined for Kids

ulna

noun ul·na \ ˈəl-nə \

Definition of ulna for Students

plural ulnas or ulnae \-nē\
:the bone on the little-finger side of the arm between the wrist and elbow

Medical Dictionary

ulna

noun ul·na \ ˈəl-nə \

medical Definition of ulna

plural ulnae play \-nē\ or ulnas
:the bone on the little-finger side of the human forearm that forms with the humerus the elbow joint and serves as a pivot in rotation of the hand

Illustration of ulna


Learn More about ulna


Seen and Heard

What made you want to look up ulna? 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 buzz or drone

Get Word of the Day daily email!

Test Your Vocabulary

Find the Cousins

  • a-large-tree-with-many-branches
  • Which pair shares a common word ancestor?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Bee Cubed

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!