Undecagon

from WordNet (r) 3.0 (2006)
undecagon
    n 1: an eleven-sided polygon
from The Collaborative International Dictionary of English v.0.48
Undecagon \Un*dec"a*gon\, n. [L. undecim eleven + Gr. ? an
   angle.] (Geom.)
   A figure having eleven angles and eleven sides.
   [1913 Webster]
antiflux / dictionary / Undecagon
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