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ulna

ul·na [ ˈəl-nə]

ulna

noun

[ˈəl-nə]

plural ulnae\ ˈəl-nē \ or ulnas

Definition of ulna

: the bone on the little-finger side of the human forearm
also : a corresponding part of the forelimb of vertebrates above fishes

Other Words from ulna

ulnar \ ˈəl-nər , -ˌnär \ adjective

Recent Examples on the Web

//These are each connected to the ulna and the radius.
— David Grossman, Popular Mechanics, "New Cyborg Wrist Gives Unprecedented Motion to Amputees," 28 Nov. 2018
//Those ligaments connect the humerus (the long bone in your upper arm between the elbow joint and shoulder) and the ulna (the long, thinner bone in your forearm on the opposite side of your thumb).
— Gabriel Baumgaertner, SI.com, "With Violent Elbow Injuries Behind Him, Braves Reliever Dan Winkler Is Pitching Like an All-Star," 4 July 2018
//Two days later, shortstop Elvis Andrus was hit by a fastball that broke his right ulna bone just below the elbow.
— Jeff Wilson, star-telegram, "What will Rangers do with Kiner-Falefa once Odor returns from DL? | Fort Worth Star-Telegram," 10 May 2018
//Napoli have confirmed that new signing Alex Meret has suffered a fracture of the left ulna during one of his first training sessions at the club, following his recent move from Udinese to I Partenopei.
— SI.com, "New Signing Alex Meret Suffers Serious Injury During SSC Napoli Training," 11 July 2018
//It's been his job the past nine seasons and was for the first two weeks of this season before an errant fastball landed near his elbow April 11 and broke the ulna bone.
— Jeff Wilson, star-telegram, "Profar comes up big for Rangers in final game as everyday shortstop," 17 June 2018
//Swapping in the relief tendon involves the surgeon drilling holes in the ulna and humerus bones and threading them in a figure-8 pattern with the healthy tissue.
— Robbie Gonzalez, WIRED, "Why It's Almost Impossible for Fastballs to Get Any Faster," 12 Apr. 2018
//On April 10, DeSantis had Tommy John surgery, a now-common procedure in which a wrist tendon was transposed into his elbow and anchored to re-connect his humerus and ulna.
— Creg Stephenson, AL.com, "Nick DeSantis back to lead South Alabama bullpen after 'amazing' return from Tommy John surgery," 16 Mar. 2018
//The bones that made the difference seemed to be the bones of the hand and wrist (phalanges, metacarpals, and carpals), the lower arm (radius and ulna), ankles (tarsals), and parts of the leg (femur and fibula, but oddly not the tibia).
— Kiona N. Smith, Ars Technica, "Machine-learning says Homo naledi may not have buried its dead," 6 Apr. 2018

First Known Use of ulna

1541, in the meaning defined above

History and Etymology for ulna

New Latin, from Latin, elbow — more at ell

Dictionary Entries near ulna

ulnar collateral ligament

ulnar collateral ligament reconstruction

More Definitions forulna

ulna

noun

English Language Learners Definition of ulna

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

ulna

noun

ul·na | \ ˈəl-nə \

plural ulnas or ulnae\ -nē \

Kids Definition of ulna

: the bone on the little-finger side of the arm between the wrist and elbow

ulna

noun

ul·na | \ ˈəl-nə \

plural ulnae\ -nē \ or ulnas

Medical Definition of ulna

: 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