Dictionary.com

ulna

[ uhl-nuh ]
/ ˈʌl nə /
Save This Word!
See synonyms for ulna on Thesaurus.com
noun, plural ul·nae [uhl-nee], /ˈʌl ni/, ul·nas.
Anatomy. the bone of the forearm on the side opposite to the thumb.Compare radius (def. 7).
a corresponding bone in the forelimb of other vertebrates.
QUIZ
CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?
There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?
Question 1 of 7
Which sentence is correct?
His boss, whom he admires, is waiting to meet with him about the big project.
His boss, who he admires, is waiting to meet with him about the big project.
TAKE THE QUIZ TO FIND OUT

Origin of ulna

1835–45; <Latin: elbow; akin to Greek ōlénē,Old English elnell2

OTHER WORDS FROM ulna

ulnar, adjectivepost·ul·nar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Words related to ulna

radius

How to use ulna in a sentence

British Dictionary definitions for ulna

ulna
/ (ˈʌlnə) /
noun plural -nae (-niː) or -nas
the inner and longer of the two bones of the human forearm
the corresponding bone in other vertebrates

Derived forms of ulna

ulnar, adjective

Word Origin for ulna

C16: from Latin: elbow, ell 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for ulna

ulna
[ ŭl′nə ]
Plural ulnas ulnae (ŭl′nē)
The longer of the two bones of the forearm or lower portion of the foreleg. See more at skeleton.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
FEEDBACK