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ulna

Line breaks: ulna
Pronunciation: /ˈʌlnə
 
/

Definition of ulna in English:

noun (plural ulnae /-niː/ or ulnas)

1The thinner and longer of the two bones in the human forearm, on the side opposite to the thumb. Compare with radius (sense 2) of the noun).
Example sentences
  • All three heads run into a common tendon that crosses the elbow joint and inserts on the olecranon process on the ulna bone in the Forearm.
  • The ulna styloid process was readily identifiable in all children, and its identification was not limited by wrist contracture.
  • It may also join the supinator, the tendon of pronator teres, or the ulna.
1.1The bone in a quadruped’s foreleg or a bird’s wing that corresponds to the ulna in a human being.
Example sentences
  • All were made from the ulna - a wing bone - of the red-crowned crane.
  • They had been crafted from the ulnae (wing bones) of the red-crowned crane (Grus japonensis Millen) and had between five and eight finger-holes.
  • In the equid foreleg, radius and ulna are united, and the ulna is greatly reduced so that all weight is born on the radius.

Origin

late Middle English (denoting the humerus): from Latin; related to ell1.

More
  • bow from (Old English):

    The bow of a ship has nothing to do with a person bowing in respect or a support bowing under pressure. The nautical bow (early 17th century) is in fact related to bough (Old English), the limb of a tree. Its immediate source, in the later Middle Ages, was German or Dutch. The phrase a shot across the bows, ‘a warning statement or gesture’, has its origins in the world of naval warfare, where it is one which is not intended to hit, but to make ships stop or alter their course. See also buxom. The archer's bow and the act of bending, both Old English, are related and come from Germanic roots. The archer's bow got its name from the shape, which also appears in Old English rainbow and elbow (Old English). The first part of the latter gives us the old measurement the ell, a variable measure, originally the distance from elbow to fingertip, which comes from the Indo-European root that also gives us ulna (mid 16th century) for the bone that runs from elbow to wrist.

Derivatives

ulnar

1
adjective
Example sentences
  • My self diagnosis is that I have ulnar nerve damage.
  • The former North Shore Twins player had a bone chip and a torn ulnar collateral ligament repaired in his right elbow.
  • He fell on his left elbow and severed his ulnar nerve, which meant he lost the use of his left hand, and an operation to repair the problem failed.

Definition of ulna in:

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