Trap"e*zoid (?), n. [Gr. trapezoid-shaped; table + shape, likeness: cf. F. trap'ezoide. See Trapezium.]
1. Geom.
A plane four-sided figure, having two sides parallel to each other.
2. Anat.
A bone of the carpus at the base of the second metacarpal, or index finger.
© Webster 1913.
Trap"e*zoid, a.
1.
Having the form of a trapezoid; trapezoidal; as, the trapezoid ligament which connects the coracoid process and the clavicle.
2. Anat.
Of or pertaining to the trapezoid ligament; as, the trapezoid line.
© Webster 1913.