sexangle

from The Collaborative International Dictionary of English v.0.48

Sexangle \Sex"an`gle\, n. [L. sexangulus sexangular; sex six +
   angulus angle: cf. F. sexangle. Cf. {Hexangular}.] (Geom.)
   A hexagon. [R.] --Hutton.
   [1913 Webster] Sexangled