trapezoid ridge
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trap·e·zoid line
[TA]the area on the inferior surface of the clavicle near its lateral extremity on which the trapezoid ligament attaches.
Synonym(s): linea trapezoidea [TA], trapezoid ridge
trapezoid ridge
An oblique ridge on the upper surface of the clavicle for attachment of the trapezoid ligament.
See also: ridge