octagonal

from WordNet (r) 3.0 (2006)

octagonal
    adj 1: of or relating to or shaped like an octagon [syn:
           {octangular}, {octagonal}]

from The Collaborative International Dictionary of English v.0.48

octagonal \oc*tag"o*nal\, a.
   Having eight sides and eight angles.
   [1913 Webster]

from Moby Thesaurus II by Grady Ward, 1.0

21 Moby Thesaurus words for "octagonal":
      decagonal, dodecagonal, dodecahedral, eightfold, eighth,
      heptagonal, hexagonal, hexahedral, icosahedral, octadic,
      octahedral, octal, octan, octaploid, octastyle, octofid, octonary,
      octosyllabic, octuple, pentagonal, pentahedral

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