Synonym for mesotendon ... The synovial layers that pass from a tendon to the wall of a tendon sheath in certain places where tendons lie within osteofibrous canals. In most instances, the mesotendon degenerates, leaving only the vinculae. ... Synonym: mesotendineum. ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973