Definitions:

1. A long bone found in the forearm, that forms the elbow joint with the humerus or upper arm bone, and plays a key role in allowing the forearm to bend and rotate, and helps form the wrist joint at its lower end. NOUN
   • The ulna is longer that the radius in most individuals, providing greater stability to the elbow.
2. One of the two long bones in the forearm, located on the side of the arm opposite the thumb, and runs from the elbow to the wrist. NOUN
   • The ulna and the radius work together to allow the forearm to rotate and the wrist to move.

Synonyms:

• elbow bone

NearBy Words:

• ulnar