单词	ulna
释义	ulna noun ul·​na ˈəl-nə  plural ulnae 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 ˈəl-nər  -ˌnär adjective Example Sentences Recent Examples on the Web The surgery repairs a torn ligament in the elbow — the ulnar collateral ligament (UCL), which connects the humerus to the ulna — with a tendon from elsewhere in the body. Hayes Gardner, Baltimore Sun, 27 Apr. 2022 The bones of paddlefish and sturgeons who died in the Chicxulub Impact indicated that the asteroid struck in the spring, and a hadrosaur in Blagoveshchensk was presumed to have broken its ulna while eating leaves or mating. Rafil Kroll-zaidi, Harper’s Magazine , 27 Apr. 2022 The excavation that turned up the whale bones—a matching radius and ulna of an adult male—began in November 2019. Alex Fox, Smithsonian Magazine, 23 June 2020 The bird was hit in the ulna — a bone in its wing — but the bullet fragments weren’t immediately removed over fears her wing could be further damaged, communications director Tracey Berry told the station Sunday. Fox News, 26 Nov. 2019 These are each connected to the ulna and the radius. David Grossman, Popular Mechanics, 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, 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, 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, 11 July 2018 See More Word History Etymology New Latin, from Latin, elbow — more at ell First Known Use 1541, in the meaning defined above Phrases Containing ulna radio-ulna radio-ulna Kids Definition ulna noun ul·​na ˈəl-nə  plural ulnas or ulnae -nē : the bone on the little-finger side of the arm between the wrist and elbow Medical Definition ulna noun ul·​na ˈəl-nə  plural ulnae -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
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