Dodecagon, do-dek'-a-gon, s
Nuttall's Standard Dictionary of the English Language · 1890 · p. 61
a plane figure, having Dog-fox, twelve equal sides and angles (Gr. dodeka, twelve, and gonia, an angle).
Bu kavram başka kaynaklarda da geçiyor
DEK
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An Illustrated Encyclopedic Medical Dictionary (1892)
Readham'da tam maddeyi gor →