• (n.) A muscle of the elbow and forearm.
<anatomy, muscle> Origin, back of lateral condyle of humerus; insertion, olecranon process and posterior surface of ulna; action, extends forearm and abducts ulna in pronation of wrist; nerve supply, radial. ... Synonym: musculus anconeus, anconeus. ... (05 Mar 2000) ... 
An·co'ne·us noun [ New Latin , from Latin ancon elbow.] (Anat.) A muscle of the elbow and forearm. 
Type: Term Pronunciation: ang-kō′nē-ŭs Synonyms: anconeus muscle
The anconeus is a small triangular muscle that originates just below the elbow joint at the lateral condyle of the humerus and extends a fourth of the way down the forearm to insert in the olecranon process and back of the ulna. It is located on the outer back corner of the elbow. The anconeus is innervated by the radial nerve and supplied by the r...
anconeus 1. A muscle of the elbow and forearm. 2. A small muscle on the posterior aspect of the elbow joint. 3. A small triangular muscle at the back of the elbow joint.
ancone, elbow.
Greek ancon = elbow, hence the muscle attached to the (lateral surface of the) olecranon.