#roundness__roundnes  the property possessed by a line or surface that is curved and not angular
  exclusion:  #angularity
  supertype:  #contour__shape__form__configuration  any spatial attribute (especially as defined by outline); "he could barely make out their shapes through the smoke"
  subtype:  #sphericity__sphericalness__sphericalnes__globularness__rotundity  the roundness of a 3-dimensional object
  subtype:  #cylindricality__cylindricalness  the roundness of a 3-dimensional cylinder
  subtype:  #circularity__disk_shape  the roundness of a 2-dimensional figure
     subtype:  #concentricity  the quality of having the same center (as circles inside one another)
     subtype:  #eccentricity.circularity  a circularity that has a different center or deviates from a circular path

No statement uses or specializes #roundness; click here to add one.