trapezoidalWiktionary 原文英美构词拆解trapezoidtrapezoid词干al-al后缀-alOf or pertaining to. Adjectival suffix appended to various words, often nouns, to produce an adjective form. Often added to words of Latin origin, but used with other words also. · Forming nouns, especially of verbal action.词源说明From trapezoid + -al.释义形容词adjective1In the shape of a trapezoid, or having some faces which have one pair of parallel sides.2(anatomy) Of or pertaining to the trapezoid bone of the wrist.同族词派生词 3nontrapezoidal·