trapezoid

trapezoid
    n 1: a quadrilateral with two parallel sides
    2: the wrist bone between the trapezium and the capitate bones
       [syn: {trapezoid}, {trapezoid bone}, {os trapezoideum}]
    

Trapezoid \Trap"e*zoid\, n. [Gr. ? trapezoid-shaped; ? table + ?
   shape, likeness: cf. F. trap['e]zo["i]de. See {Trapezium}.]
   1. (Geom.) A plane four-sided figure, having two sides
      parallel to each other.
      [1913 Webster]

   2. (Anat.) A bone of the carpus at the base of the second
      metacarpal, or index finger.
      [1913 Webster]
    

Trapezoid \Trap"e*zoid\, a.
   1. Having the form of a trapezoid; trapezoidal; as, the
      trapezoid ligament which connects the coracoid process and
      the clavicle.
      [1913 Webster]

   2. (Anat.) Of or pertaining to the trapezoid ligament; as,
      the trapezoid line.
      [1913 Webster]
    

20 Moby Thesaurus words for "trapezoid":
      cube-shaped, cubed, cubic, cubiform, cuboid, diced, foursquare,
      oblong, orthogonal, quadrangular, quadrate, quadriform,
      quadrilateral, rectangular, rhombic, rhomboid, square, tetragonal,
      tetrahedral, trapezohedral