difform

Because in the composite column, there are two difform materials to confine concrete, the effect of restraint is different from circular section to square section.

In various writings from the early 1670s, we find Leibniz defining harmony as "a similitude in dissimilar things" (similitudo in dissimilibus), and referring to that which is harmonious as "uniformly difform" (Harmonicum est uniformiter difforme).(5) Yet he most frequently defined harmony as "diversity compensated by identity" (diversitate identitate compensata) or as "unity in variety" (unitas in varietate).(6) His most elaborated discussion of the concept appears years later in the Elementa Verae Pietatis, Sive De Amore Dei Super Omnia (16797): Harmony is unity in variety....