Ancon \An"con\ ([a^][ng]"k[o^]m), n.; L. pl. {Ancones}. [L., fr. Gr. 'agkw`n the bent arm, elbow; any hook or bend.] (Anat.) The olecranon, or the elbow. {Ancon sheep} (Zo["o]l.), a breed of sheep with short crooked legs and long back. It originated in Massachusetts in 1791; -- called also the {otter breed}.