trapezoidal

adj

Etymology: Etymology tree English trapezoid Proto-Indo-European *h₂el-der.? Proto-Italic *-ālis Latin -ālisbor. Old French -albor. ▲ Latin -ālis Old French -elbor. ▲ Latin -ālisbor. Middle English -al English -al English trapezoidal From trapezoid + -al.

1. In the shape of a trapezoid, or having some faces which have one pair of parallel sides.

   “On the each end was a leanback made of willow rods tied together in a tapered trapezoidal form set at an angle. Covers of buffalo hide with the hair on and quillwork designs were draped over the leanback and bed surface.”

2. Of or pertaining to the trapezoid bone of the wrist.