Search Result for "dodecagon": 
Wordnet 3.0

NOUN (1)

1. a twelve-sided polygon;

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2 definitions retrieved:

The Collaborative International Dictionary of English v.0.48:

Dodecagon \Do*dec"a*gon\, n. [Gr. ? twelve + ? angle: cf. F. dod['e]cagone.] (Geom.) A figure or polygon bounded by twelve sides and containing twelve angles. [1913 Webster]
WordNet (r) 3.0 (2006):

dodecagon n 1: a twelve-sided polygon