superelliptical

From super- +‎ elliptical.

• Audio (US):

  (file)

superelliptical (comparative more superelliptical, superlative most superelliptical)

1. Having the shape of a superellipse.
   • 1975, Martin Gardner, Mathematical carnival, page 243:

     Already the large superelliptical pool has conferred upon Stockholm an unusual mathematical flavor, like the big catenary curve of St. Louis's Gateway Arch...