SYN: a. muscle. [L.]
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an·co·ne·us aŋ-'kō-nē-əs n, pl -nei -nē-.ī a small triangular extensor muscle that is superficially situated behind and below the elbow and that extends the forearm called also anconeus muscle
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n.
a muscle behind the elbow that assists in extending the forearm.
Medical dictionary. 2011.