olecranon

1. (anatomy) The bony process at the top of the ulna forming the point of the elbow.Examples: "Mr. Fletcher, of Liverpool, reported a case of bony union of both olecranons, verified by examination after death. The patient, a boy 16 years old, was admitted to the hospital May 19, 1850, having fractured both olecranons a short time before by falling over some timber."; "Suspensory animals have extremely small olecrana, because of a minimal need for forearm extension, which is achieved by gravity."; "The subcutaneous location of the olecranon makes it vulnerable to trauma.⁷ Isolated fractures of the olecranon comprise approximately 10% of fractures about the elbow,^(26,38) with an estimated incidence of 1.08 per 10,000 person-years."Synonyms: elbow bone