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ulna

[ uhl-nuh ]
/ ˈʌl nə /
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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.

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Origin of ulna

1835–45; <Latin: elbow; akin to Greek ōlénē,Old English elnell2
ulnar, adjectivepost·ul·nar, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021

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
ulnar, adjective
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

Medical definitions for ulna

ulna
[ ŭlnə ]

n. pl. ul•nas

The larger bone of the two bones of the forearm, extending from elbow to wrist on the side opposite the thumb.cubitus elbow bone
ulnar adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for ulna

ulna
[ ŭlnə ]

Plural ulnas ulnae (ŭl)

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.
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