Mul*tan"gu*lar*ness

from The Collaborative International Dictionary of English v.0.48

Multangular \Mul*tan"gu*lar\, a. [L. multangulus; multus much,
   many + angulus angle: cf. F. multangulaire.]
   Having many angles. -- {Mul*tan"gu*lar*ly}, adv. --
   {Mul*tan"gu*lar*ness}, n.
   [1913 Webster]